<script data-pm-proxy="intercept"></script><?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" xmlns:googleplay="http://www.google.com/schemas/play-podcasts/1.0"><channel><title><![CDATA[ON THE PEN]]></title><description><![CDATA[GLP-1 and obesity medicine news.]]></description><link>https://onthepen.substack.com</link><image><url>https://substackcdn.com/image/fetch/$s_!ca_2!,w_256,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5377a6ad-162f-49f5-86d9-44fba2dcb772_900x900.png</url><title>ON THE PEN</title><link>https://onthepen.substack.com</link></image><generator>Substack</generator><lastBuildDate>Tue, 01 Sep 2026 11:47:51 GMT</lastBuildDate><atom:link href="/__u/onthepen.substack.com/feed" rel="self" type="application/rss+xml"/><copyright><![CDATA[David Knapp]]></copyright><language><![CDATA[en]]></language><webMaster><![CDATA[onthepen@substack.com]]></webMaster><itunes:owner><itunes:email><![CDATA[onthepen@substack.com]]></itunes:email><itunes:name><![CDATA[On The Pen GLP-1 News]]></itunes:name></itunes:owner><itunes:author><![CDATA[On The Pen GLP-1 News]]></itunes:author><googleplay:owner><![CDATA[onthepen@substack.com]]></googleplay:owner><googleplay:email><![CDATA[onthepen@substack.com]]></googleplay:email><googleplay:author><![CDATA[On The Pen GLP-1 News]]></googleplay:author><itunes:block><![CDATA[Yes]]></itunes:block><item><title><![CDATA[LIVE @ 11AM CT - The “Exercise Pill”]]></title><description><![CDATA[How could it change obesity treatment?]]></description><link>https://onthepen.substack.com/p/live-11am-ct-the-exercise-pill</link><guid isPermaLink="false">https://onthepen.substack.com/p/live-11am-ct-the-exercise-pill</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Wed, 19 Aug 2026 15:47:54 GMT</pubDate><enclosure url="https://substackcdn.com/image/youtube/w_728,c_limit/up9_jYoDXw8" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Don&#8217;t miss the latest news and the live community conversation!</p><div id="youtube2-up9_jYoDXw8" class="youtube-wrap" data-attrs="{&quot;videoId&quot;:&quot;up9_jYoDXw8&quot;,&quot;startTime&quot;:null,&quot;endTime&quot;:null}" data-component-name="Youtube2ToDOM"><div class="youtube-inner"><iframe src="https://www.youtube-nocookie.com/embed/up9_jYoDXw8?rel=0&amp;autoplay=0&amp;showinfo=0&amp;enablejsapi=0" frameborder="0" loading="lazy" gesture="media" allow="autoplay; fullscreen" allowautoplay="true" allowfullscreen="true" width="728" height="409"></iframe></div></div>]]></content:encoded></item><item><title><![CDATA[I Was Selling Traffic Signals. Then Everything Changed.]]></title><description><![CDATA[I&#8217;ve Never Told This Part of the On The Pen Story]]></description><link>https://onthepen.substack.com/p/i-was-selling-traffic-signals-then</link><guid isPermaLink="false">https://onthepen.substack.com/p/i-was-selling-traffic-signals-then</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Sat, 08 Aug 2026 18:26:18 GMT</pubDate><enclosure url="https://substackcdn.com/image/youtube/w_728,c_limit/NZ06GpV4aJQ" length="0" type="image/jpeg"/><content:encoded><![CDATA[<h1>I&#8217;ve Never Told This Part of the On The Pen Story</h1><p>Most of you know me because of On The Pen. You know the guy reading clinical trials, digging through FDA documents, talking about GLP-1s and occasionally yelling into a microphone about something the pharmaceutical or compounding industry did that morning. But you probably don&#8217;t know how any of this actually started, and honestly, it&#8217;s a pretty cool story.</p><p><strong><a href="https://www.youtube.com/watch?v=NZ06GpV4aJQ&amp;t=2628s">WATCH THE FULL STORY HERE</a></strong></p><div id="youtube2-NZ06GpV4aJQ" class="youtube-wrap" data-attrs="{&quot;videoId&quot;:&quot;NZ06GpV4aJQ&quot;,&quot;startTime&quot;:null,&quot;endTime&quot;:null}" data-component-name="Youtube2ToDOM"><div class="youtube-inner"><iframe src="https://www.youtube-nocookie.com/embed/NZ06GpV4aJQ?rel=0&amp;autoplay=0&amp;showinfo=0&amp;enablejsapi=0" frameborder="0" loading="lazy" gesture="media" allow="autoplay; fullscreen" allowautoplay="true" allowfullscreen="true" width="728" height="409"></iframe></div></div><p>Just a few short years ago, I wasn&#8217;t working in healthcare, media or anything remotely adjacent to either of them. I was selling traffic signals. I had a job I was good at, a career I genuinely enjoyed, a wife and four kids depending on me, and absolutely no grand plan to become a podcaster. Then I was diagnosed with type 2 diabetes.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://onthepen.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">ON THE PEN is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p>That diagnosis eventually led me to Mounjaro. Mounjaro led me down a rabbit hole of trying to understand what these medications were actually doing inside the body beyond these massive weight loss stories that were starting to emerge in the social media world. When I couldn&#8217;t find people explaining the science in a way that made sense to me as a patient, I started talking about it myself. That little decision eventually became On The Pen.</p><p>But that is only the surface-level version of the story. Recently, <strong><a href="/__u/www.google.com/search?q=amy+wienands+podcast&amp;sca_esv=4087246c015e5f34&amp;sxsrf=APpeQnvumAtLoH3jZUKDkyK5GdPKcso-rA%3A1786213314410&amp;udm=50&amp;fbs=ABfTbFVyMZGZf1hfvX9uKjN_-G8cxpBkeIeqYwoCbfNVc4vKE-Dsslc-KGKq55jF_BVsFlBETcQE9jpeDgApPlcTya2OOdXW72O8mFxTP8PgDP1u5B4aykVjODcrTW4GFwH4Zp2L1key9jMwFjgkhVK2v4HFqU2VfoA3ASPV70XxIerTQ835Y1SAUeVUd3r79g5AZw0aqKPaA_7Lrm8vmTGs3ETrZDpc9g&amp;aep=1&amp;ntc=1&amp;cs=0&amp;sa=X&amp;ved=2ahUKEwi-tuSQ05GWAxWwNYYAHcVhEZgQ2J8OegQIExAD&amp;biw=1019&amp;bih=891&amp;dpr=2&amp;sourceid=chrome&amp;ccb=1&amp;hl=en-US&amp;atvm=2&amp;mstk=AUtExfBbyHjKXu_6P9Jr5VRmVhyMLF2yKeOr1-q_kjyKGto-1qLkkAfQ_bwGUrdetco3B-YkntxYPBTS3oZ2WvBiI-XG33m9lTDFnJSFBizifft8o3oyY1QkIlh9e0sEvESknTOdPrWjLMHGZ_3y_5_tSg8ib2VwmgFAEmElfcFIwxS4iU-XvCuT0-sGBgRCm7xJOD18l4MppxKYsSxGuTvhNh4MKQItVlR9WH8XfAwpd2-NB54Ud5Kg2OSHeRvkaGUkGBgDyg2pibAorg&amp;csuir=1">Amy Wienands </a></strong>invited me onto <em>You Are More</em>, a podcast I have listened to and loved for years, and she asked me questions that forced me to go much deeper than I normally do when people ask how On The Pen started.</p><p>We talked about my dad, including the last conversation I had with him just three days before he unexpectedly died. We talked about spending nearly a decade in a career I somehow knew was a stepping stone, while having absolutely no idea where the next stone was. And we talked about the moment when staying comfortable finally became harder than stepping into the unknown. </p><p>We also talked about what has happened since. There have been some incredible moments over the last couple of years, but there have also been moments when this entire thing felt much more fragile than it probably looked from the outside. In fact, I told Amy a story from just the past few months about the new On The Pen studio, losing our largest sponsor at almost exactly the wrong time, needing to suddenly come up with a significant amount of money, and my wife showing up at my office with our four kids because they knew Dad was stressed.</p><p>They didn&#8217;t come with a check. They came to pray. What happened next is one of those stories I hope my kids remember long after they or the world has forgotten what On The Pen is.</p><blockquote><p>This conversation is probably the most personal explanation I&#8217;ve ever given of how I ended up here. It&#8217;s about On The Pen, but it&#8217;s also about my dad, my wife, my kids, fear, comfort, calling, and learning that sometimes stepping out in faith still feels an awful lot like stepping out in fear.</p></blockquote><p>Most importantly, it&#8217;s about looking backward and realizing that some of the seasons of your life that made the least sense while you were living them were preparing you for something you couldn&#8217;t see yet.</p><p>I don&#8217;t know what the next chapter of On The Pen looks like. But after this conversation with Amy, I&#8217;m more convinced than ever that I don&#8217;t necessarily need to. I hope you&#8217;ll watch this one.</p><p></p>]]></content:encoded></item><item><title><![CDATA[EXCLUSIVE: Wegovy FlexTouch Is Coming to America]]></title><description><![CDATA[Here&#8217;s why this is a big deal&#8230;.]]></description><link>https://onthepen.substack.com/p/exclusive-wegovy-flextouch-is-coming</link><guid isPermaLink="false">https://onthepen.substack.com/p/exclusive-wegovy-flextouch-is-coming</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Sat, 08 Aug 2026 04:18:09 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!uzGQ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p><strong><a href="https://x.com/manonthepen/status/2085487766700462527?s=46">Multiple credible sources tell On The Pen that Novo Nordisk is preparing to launch a multi-dose Wegovy FlexTouch pen in the United States in the coming weeks, and FDA records show the device is already approved.</a></strong></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!uzGQ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!uzGQ!, /__u/onthepen.substack.com/w_424, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png 424w, /__u/substackcdn.com/image/fetch/$s_!uzGQ!, /__u/onthepen.substack.com/w_848, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png 848w, /__u/substackcdn.com/image/fetch/$s_!uzGQ!, /__u/onthepen.substack.com/w_1272, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png 1272w, /__u/substackcdn.com/image/fetch/$s_!uzGQ!, /__u/onthepen.substack.com/w_1456, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!uzGQ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png" width="1254" height="1254" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/d413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:&quot;normal&quot;,&quot;height&quot;:1254,&quot;width&quot;:1254,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:0,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!uzGQ!, /__u/onthepen.substack.com/w_424, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png 424w, /__u/substackcdn.com/image/fetch/$s_!uzGQ!, /__u/onthepen.substack.com/w_848, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png 848w, /__u/substackcdn.com/image/fetch/$s_!uzGQ!, /__u/onthepen.substack.com/w_1272, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png 1272w, /__u/substackcdn.com/image/fetch/$s_!uzGQ!, /__u/onthepen.substack.com/w_1456, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd413fb45-e3b8-47fb-a4cd-c9a010a45624_1254x1254.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>For years, American Wegovy patients have been using a remarkably inflexible delivery system for a disease that is anything but predictable. One dose comes in one pen, you inject it once, and then the entire device goes into the trash. If your prescribed dose is 2.4 mg, that pen delivers 2.4 mg. There has been very little flexibility built into the hardware itself.</p><p>That may be about to change. On The Pen has now verified with multiple credible sources that Novo Nordisk is preparing to launch the Wegovy FlexTouch pen for the 2.4 mg dose in the United States in the coming weeks.</p><p>A few months ago, we noted that the moves were being made with the FDA that could potentially set the stage for this launch. Novo Nordisk has now secured that approval for a U.S. Wegovy FlexTouch presentation containing 9.6 mg of semaglutide in 3 mL, with a single pen intended to deliver four labeled doses of 2.4 mg. The question is when patients will actually begin seeing it at pharmacies, and my sources tell me that answer is soon.</p><p><strong>What exactly is changing?</strong></p><p>Most Americans currently know injectable Wegovy as a box containing four disposable pens. Each pen is used for one injection and then discarded. The new FlexTouch presentation fundamentally changes that experience because one pen contains four weekly 2.4 mg doses, with disposable needles changed between injections.</p><p><strong><a href="https://www.instagram.com/reel/Dbt2Z8Yp6wm/?igsh=MTNrM3o2dDljdWF2eQ==">If the device sounds familiar, there is a reason. FlexTouch is the same general multi-dose pen platform Americans have already seen used with Novo Nordisk products such as Ozempic</a></strong>. Instead of opening a new complete injection device every week, patients keep the same pen and attach a new needle for each dose.</p><p>From a convenience and waste standpoint alone, that is a meaningful change. Instead of four complete pens filling a refrigerator and eventually a trash can, a patient would use one pen over approximately four weeks.</p><p>But I also know exactly where the conversation around this is going to go, because patients are going to look at this device and immediately ask whether it means Wegovy dosing is about to become more flexible.</p><p><strong>Why only the 2.4 mg dose?</strong></p><p>Sources familiar with the upcoming rollout tell On The Pen that this launch will apply specifically to the 2.4 mg Wegovy dose. At least initially, the lower Wegovy strengths are not expected to be part of the FlexTouch launch in the United States.</p><p>That actually makes commercial sense. The 2.4 mg dose has historically been the primary maintenance dose for Wegovy, meaning patients who successfully titrate to it may remain there for a prolonged period of time. A four-dose reusable pen format is particularly well suited to that phase of treatment.</p><p>The FDA labeling supports exactly that configuration. The FlexTouch presentation contains 9.6 mg of semaglutide in 3 mL and is designed around four weekly 2.4 mg doses, while the familiar single-dose Wegovy presentations remain part of the product lineup.</p><p>In other words, this does not appear to be an immediate wholesale replacement of every Wegovy pen currently sold in America. It looks much more like Novo is starting with the maintenance dose, via the cash pay channel, which is the most logical place to begin for a number of reasons.</p><p><strong>Then there is the money</strong></p><p>This is where the story could become much more interesting. Novo Nordisk has been increasingly aggressive with direct-to-patient and self-pay pricing as the competition for obesity patients has intensified, and the introduction of a four-dose FlexTouch pen adds another variable to that strategy.</p><p>The most obvious patient question will be whether the FlexTouch presentation is priced and discounted exactly like the existing box. Theoretically, a physician may elect to prescribe the higher dose flexible pen, and give patients using lower doses a pathway to refill their medication less often. Of course this would go against the label and package insert, but we all know it will happen.</p><p>The coolest part? Novo doesn&#8217;t have a 45 day refill requirement like Eli Lilly does.</p><p>Cheers,</p><p>DK</p>]]></content:encoded></item><item><title><![CDATA[LIVE NOW: Lilly Earnings Call Recap! Retatrutide News!]]></title><description><![CDATA[Watch now live, or ondemand later by clicking play below!]]></description><link>https://onthepen.substack.com/p/live-now-lilly-earnings-call-recap</link><guid isPermaLink="false">https://onthepen.substack.com/p/live-now-lilly-earnings-call-recap</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Wed, 05 Aug 2026 23:59:38 GMT</pubDate><enclosure url="https://substackcdn.com/image/youtube/w_728,c_limit/qu5FGSXGuEk" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Watch now live, or ondemand later by clicking play below!</p><div id="youtube2-qu5FGSXGuEk" class="youtube-wrap" data-attrs="{&quot;videoId&quot;:&quot;qu5FGSXGuEk&quot;,&quot;startTime&quot;:null,&quot;endTime&quot;:null}" data-component-name="Youtube2ToDOM"><div class="youtube-inner"><iframe src="https://www.youtube-nocookie.com/embed/qu5FGSXGuEk?rel=0&amp;autoplay=0&amp;showinfo=0&amp;enablejsapi=0" frameborder="0" loading="lazy" gesture="media" allow="autoplay; fullscreen" allowautoplay="true" allowfullscreen="true" width="728" height="409"></iframe></div></div><p></p>]]></content:encoded></item><item><title><![CDATA[LIVE NOW: Meet The New Tirzepatide Add On  From Lilly (not Eloralintide)]]></title><description><![CDATA[These are fun videos&#8230; The videos where we get to introduce you to new molecules that no one else on the web is talking about.]]></description><link>https://onthepen.substack.com/p/live-now-meet-the-new-tirzepatide</link><guid isPermaLink="false">https://onthepen.substack.com/p/live-now-meet-the-new-tirzepatide</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Mon, 03 Aug 2026 16:00:30 GMT</pubDate><enclosure url="https://substackcdn.com/image/youtube/w_728,c_limit/NZXJP8ZarFE" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>These are fun videos&#8230; The videos where we get to introduce you to new molecules that no one else on the web is talking about. See you live at 12pm Eastern! Click to watch below and make sure to subscribe, and hit the thumbs up while you&#8217;re there!</p><p>Late to the party, no worries, you can watch the replay on-demand by clicking the video!</p><p>-DK</p><div id="youtube2-NZXJP8ZarFE" class="youtube-wrap" data-attrs="{&quot;videoId&quot;:&quot;NZXJP8ZarFE&quot;,&quot;startTime&quot;:null,&quot;endTime&quot;:null}" data-component-name="Youtube2ToDOM"><div class="youtube-inner"><iframe src="https://www.youtube-nocookie.com/embed/NZXJP8ZarFE?rel=0&amp;autoplay=0&amp;showinfo=0&amp;enablejsapi=0" frameborder="0" loading="lazy" gesture="media" allow="autoplay; fullscreen" allowautoplay="true" allowfullscreen="true" width="728" height="409"></iframe></div></div><p></p>]]></content:encoded></item><item><title><![CDATA[I Think Everyone Is Looking at the Retatrutide Lawsuit the Wrong Way]]></title><description><![CDATA[This matters to anyone watching the GLP-1 space closely]]></description><link>https://onthepen.substack.com/p/i-think-everyone-is-looking-at-the</link><guid isPermaLink="false">https://onthepen.substack.com/p/i-think-everyone-is-looking-at-the</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Tue, 28 Jul 2026 20:52:04 GMT</pubDate><enclosure url="https://substackcdn.com/image/youtube/w_728,c_limit/dexACjU6DyM" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>There are stories that make headlines, and then there are stories that quietly shape the future before most people even realize they&#8217;re watching history unfold. I believe the fight over retatrutide&#8217;s biologic status is one of those stories.</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/i-think-everyone-is-looking-at-the">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[The SAFE Drugs Act No Longer a Threat to Compounded GLP-1]]></title><description><![CDATA[We spoke. Washington listened.]]></description><link>https://onthepen.substack.com/p/the-safe-drugs-act-no-longer-a-threat</link><guid isPermaLink="false">https://onthepen.substack.com/p/the-safe-drugs-act-no-longer-a-threat</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Sun, 26 Jul 2026 16:52:27 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/c18f9f83-606d-4255-8166-a12fbd16efcc_1080x1920.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>When the SAFE Drugs Act was first introduced, we viewed it as uniquely threatening to the On The Pen community. While much of the initial conversation surrounding this bill centered on pharmacy regulation and FDA authority, our concern was much more straightforward. We believed portions of the legislation, however well-intentioned, risked disrupting pat&#8230;</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/the-safe-drugs-act-no-longer-a-threat">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[BREAKING: Lilly Just Put Retatrutide on the Road to Approval, and Three Letters Changed the Conversation]]></title><description><![CDATA[The latest in a 2 year long saga...]]></description><link>https://onthepen.substack.com/p/breaking-lilly-just-put-retatrutide</link><guid isPermaLink="false">https://onthepen.substack.com/p/breaking-lilly-just-put-retatrutide</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Thu, 23 Jul 2026 13:12:04 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/2baccad2-1835-4e30-a00d-1d56b0a258f5_1080x1920.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>For nearly two years, one of the biggest unanswered questions surrounding retatrutide wasn&#8217;t how much weight people would lose. We already had a pretty good idea of that from the Phase 2 data. The bigger question was what would happen once Lilly reached the FDA. Would retatrutide be reviewed as a traditional drug, or would it ultimately be regulated as &#8230;</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/breaking-lilly-just-put-retatrutide">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[This Study Changes the GLP-1 Deficiency Debate]]></title><description><![CDATA[This may be one of the most important obesity papers published all year.]]></description><link>https://onthepen.substack.com/p/this-study-changes-the-glp-1-deficiency</link><guid isPermaLink="false">https://onthepen.substack.com/p/this-study-changes-the-glp-1-deficiency</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Sat, 18 Jul 2026 16:01:07 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!iIkC!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!iIkC!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!iIkC!, /__u/onthepen.substack.com/w_424, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png 424w, /__u/substackcdn.com/image/fetch/$s_!iIkC!, /__u/onthepen.substack.com/w_848, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png 848w, /__u/substackcdn.com/image/fetch/$s_!iIkC!, /__u/onthepen.substack.com/w_1272, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png 1272w, /__u/substackcdn.com/image/fetch/$s_!iIkC!, /__u/onthepen.substack.com/w_1456, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!iIkC!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png" width="1280" height="720" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:&quot;normal&quot;,&quot;height&quot;:720,&quot;width&quot;:1280,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:0,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!iIkC!, /__u/onthepen.substack.com/w_424, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png 424w, /__u/substackcdn.com/image/fetch/$s_!iIkC!, /__u/onthepen.substack.com/w_848, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png 848w, /__u/substackcdn.com/image/fetch/$s_!iIkC!, /__u/onthepen.substack.com/w_1272, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png 1272w, /__u/substackcdn.com/image/fetch/$s_!iIkC!, /__u/onthepen.substack.com/w_1456, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2a0ad0e8-66ce-429b-b67d-872fb0b8419c_1280x720.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>This may be one of the most important obesity papers published all year. Not because it introduces a new drug, but because it challenges one of the biggest assumptions in obesity medicine. For years, many experts have pushed back on the idea that people with obesity could be &#8220;GLP-1 deficient.&#8221; This new research suggests they may have been asking the wrong question. One of the biggest themes we&#8217;ve explored together recently is that obesity isn&#8217;t one disease. It&#8217;s a family of diseases, each driven by different biology. If that&#8217;s true, different patients shouldn&#8217;t just respond differently to treatment. They should <em>need</em> different treatments.</p><p>For years, this debate has quietly simmered in obesity medicine. Patients often describe GLP-1 medications as &#8220;replacing something their body was missing.&#8221; Many physicians, however, have pushed back on that language. Their argument has generally been that GLP-1 isn&#8217;t like insulin in type 1 diabetes. People with obesity don&#8217;t simply have a GLP-1 deficiency. The issue is believed to be far more complicated than that. Until now, they had a point. We didn&#8217;t really have convincing evidence that a distinct group of patients actually produced less GLP-1. That may have just changed.</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/this-study-changes-the-glp-1-deficiency">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[Boehringer’s Next Obesity Bet Not Just Another Incretin, It’s One of the Brain’s Most Powerful Hunger Pathways]]></title><description><![CDATA[Over the past few years, we&#8217;ve watched obesity medicines evolve from our favorite GLP-1 therapies we discuss like semaglutide, or dual agonists like tirzepatide, and now to triple agonists like retatrutide.]]></description><link>https://onthepen.substack.com/p/boehringers-next-obesity-bet-not</link><guid isPermaLink="false">https://onthepen.substack.com/p/boehringers-next-obesity-bet-not</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Fri, 17 Jul 2026 10:00:17 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/96c1121a-d8f1-41e3-9e06-33afab6ea834_1200x630.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Over the past few years, we&#8217;ve watched obesity medicines evolve from our favorite GLP-1 therapies we discuss like semaglutide, or dual agonists like tirzepatide, and now to triple agonists like retatrutide. Each generation has targeted more biological pathways than the last, and each has delivered greater weight loss by treating obesity as the complex b&#8230;</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/boehringers-next-obesity-bet-not">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[A New Pill for Obesity Is Targeting the Brain’s “Weight Control” System]]></title><description><![CDATA[This Pill Doesn&#8217;t Use GLP-1, and It Could Be Huge]]></description><link>https://onthepen.substack.com/p/a-new-pill-for-obesity-is-targeting</link><guid isPermaLink="false">https://onthepen.substack.com/p/a-new-pill-for-obesity-is-targeting</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Thu, 16 Jul 2026 16:51:45 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!zIZ-!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!zIZ-!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!zIZ-!, /__u/onthepen.substack.com/w_424, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png 424w, /__u/substackcdn.com/image/fetch/$s_!zIZ-!, /__u/onthepen.substack.com/w_848, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png 848w, /__u/substackcdn.com/image/fetch/$s_!zIZ-!, /__u/onthepen.substack.com/w_1272, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png 1272w, /__u/substackcdn.com/image/fetch/$s_!zIZ-!, /__u/onthepen.substack.com/w_1456, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!zIZ-!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png" width="1280" height="720" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/c0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:&quot;normal&quot;,&quot;height&quot;:720,&quot;width&quot;:1280,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:0,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!zIZ-!, /__u/onthepen.substack.com/w_424, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png 424w, /__u/substackcdn.com/image/fetch/$s_!zIZ-!, /__u/onthepen.substack.com/w_848, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png 848w, /__u/substackcdn.com/image/fetch/$s_!zIZ-!, /__u/onthepen.substack.com/w_1272, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png 1272w, /__u/substackcdn.com/image/fetch/$s_!zIZ-!, /__u/onthepen.substack.com/w_1456, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc0b122fd-caff-4531-979e-bd18aa7ca2ce_1280x720.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>One of the themes we talked about on today&#8217;s live is that we often speak about obesity as though it&#8217;s one disease. In reality, it may be more accurate to think of obesity as a family of diseases. Two people can have the same BMI and the same amount of weight to lose, yet the biology driving their obesity may be completely different. For one person, insu&#8230;</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/a-new-pill-for-obesity-is-targeting">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[SHOCKING GALLUP POLL: Compound Users Rate Medication Effectiveness Higher than Branded!]]></title><description><![CDATA[For the past several years, the obesity conversation has centered on one thing: better medications.]]></description><link>https://onthepen.substack.com/p/shocking-gallup-poll-compound-users</link><guid isPermaLink="false">https://onthepen.substack.com/p/shocking-gallup-poll-compound-users</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Wed, 08 Jul 2026 20:12:26 GMT</pubDate><enclosure url="https://substackcdn.com/image/youtube/w_728,c_limit/Qx8usVJw0V0" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p></p>
      <p>
          <a href="/__u/onthepen.substack.com/p/shocking-gallup-poll-compound-users">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[The Countdown to $50 GLP-1 is Here!]]></title><description><![CDATA[Here&#8217;s everything you need to know!]]></description><link>https://onthepen.substack.com/p/the-countdown-to-50-glp-1-is-here</link><guid isPermaLink="false">https://onthepen.substack.com/p/the-countdown-to-50-glp-1-is-here</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Wed, 24 Jun 2026 10:18:58 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!RkzZ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!RkzZ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!RkzZ!, /__u/onthepen.substack.com/w_424, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png 424w, /__u/substackcdn.com/image/fetch/$s_!RkzZ!, /__u/onthepen.substack.com/w_848, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png 848w, /__u/substackcdn.com/image/fetch/$s_!RkzZ!, /__u/onthepen.substack.com/w_1272, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png 1272w, /__u/substackcdn.com/image/fetch/$s_!RkzZ!, /__u/onthepen.substack.com/w_1456, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_webp, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!RkzZ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png" width="1280" height="720" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:&quot;normal&quot;,&quot;height&quot;:720,&quot;width&quot;:1280,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:0,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!RkzZ!, /__u/onthepen.substack.com/w_424, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png 424w, /__u/substackcdn.com/image/fetch/$s_!RkzZ!, /__u/onthepen.substack.com/w_848, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png 848w, /__u/substackcdn.com/image/fetch/$s_!RkzZ!, /__u/onthepen.substack.com/w_1272, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png 1272w, /__u/substackcdn.com/image/fetch/$s_!RkzZ!, /__u/onthepen.substack.com/w_1456, /__u/onthepen.substack.com/c_limit, /__u/onthepen.substack.com/f_auto, /__u/onthepen.substack.com/q_auto:good, /__u/onthepen.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F54da437a-1de6-47aa-9a42-3e403c062f49_1280x720.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>In just a few days, millions of Medicare beneficiaries who have been locked out of obesity treatment could gain access to GLP-1 medications for as little as $50 per month.</p><p>On this week&#8217;s <em>On The Pen Podcast</em>, I sat down with obesity medicine expert Dr. Angela Fitch to break down exactly who qualifies, how the Medicare Bridge Program works, and why this cou&#8230;</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/the-countdown-to-50-glp-1-is-here">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[A Historic First: The First Patient Receives Retatrutide Outside a Clinical Trial]]></title><description><![CDATA[Last week, On The Pen reported that Eli Lilly was working with the FDA to provide retatrutide through the agency&#8217;s expanded access, or compassionate use, pathway.]]></description><link>https://onthepen.substack.com/p/a-historic-first-the-first-patient</link><guid isPermaLink="false">https://onthepen.substack.com/p/a-historic-first-the-first-patient</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Tue, 23 Jun 2026 13:27:00 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!ca_2!,w_256,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5377a6ad-162f-49f5-86d9-44fba2dcb772_900x900.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Last week, On The Pen reported that Eli Lilly was working with the FDA to provide retatrutide through the agency&#8217;s expanded access, or compassionate use, pathway. This week, it happened.</p><p>According to STAT, a 79-year-old man has become the first known patient to receive retatrutide outside of a clinical trial.</p><p>The news is significant not because it changes&#8230;</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/a-historic-first-the-first-patient">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[A U.S. Senator Wants the FDA to Investigate GLP-1 Telehealth Companies]]></title><description><![CDATA[Here&#8217;s What Patients Should Watch.]]></description><link>https://onthepen.substack.com/p/a-us-senator-wants-the-fda-to-investigate</link><guid isPermaLink="false">https://onthepen.substack.com/p/a-us-senator-wants-the-fda-to-investigate</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Thu, 18 Jun 2026 14:44:22 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!LrUo!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F46c4c7b2-eceb-4d81-bf2d-a52b84f820c8_1158x1542.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>A new letter from Senator Jim Banks to Acting FDA Commissioner Kyle Diamantas may offer the clearest indication yet of where the next phase of GLP-1 enforcement is headed. The Indiana Republican is asking the FDA to investigate Hims &amp; Hers and potentially other telehealth companies over advertising claims, pricing practices, and the marketing of compounded GLP-1 medications. While the headlines focus on a single company, the broader significance lies in the questions Banks believes regulators should be asking across the industry.</p><p></p>
      <p>
          <a href="/__u/onthepen.substack.com/p/a-us-senator-wants-the-fda-to-investigate">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[ADA 2026: What Actually Mattered in the Obesity Medicine Deluge?]]></title><description><![CDATA[ADA 2026 delivered exactly what we expected and then some.]]></description><link>https://onthepen.substack.com/p/ada-2026-what-actually-mattered-in</link><guid isPermaLink="false">https://onthepen.substack.com/p/ada-2026-what-actually-mattered-in</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Wed, 17 Jun 2026 15:02:18 GMT</pubDate><enclosure url="https://i.scdn.co/image/ab6765630000ba8ada2d7c5e0c8ca9e47bebcc1e" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>ADA 2026 delivered exactly what we expected and then some. New Phase III results. Fresh safety questions. Exciting next-generation therapies. And one growing realization:</p><p><strong>The future of obesity medicine is going to be far more complicated than asking which drug produces the most weight loss.</strong></p><p>Dave welcomed Jen (@JcanNuSH) back to <em>On The Pen</em> to separate the &#8230;</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/ada-2026-what-actually-mattered-in">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[FDA’s Latest Telehealth Warning Letters Send a Message]]></title><description><![CDATA[&#8230; And It Isn&#8217;t About 503A Compounding]]></description><link>https://onthepen.substack.com/p/fdas-latest-telehealth-warning-letters</link><guid isPermaLink="false">https://onthepen.substack.com/p/fdas-latest-telehealth-warning-letters</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Tue, 16 Jun 2026 13:47:56 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/5652761b-0338-487f-9598-ab9152e61014_1200x630.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>The FDA issued another round of warning letters to telehealth companies last week, and published them today alongside a<a href="https://www.fda.gov/drugs/human-drug-compounding/fda-telehealth-companies-what-know-when-promoting-compounded-drugs"> </a><strong><a href="https://www.fda.gov/drugs/human-drug-compounding/fda-telehealth-companies-what-know-when-promoting-compounded-drugs">warning to telehealth companies</a></strong>. But buried beneath the headlines is a signal that could be more important than the letters themselves: the agency appears to be focusing its fire on marketing practices, not on 503A compounding as a who&#8230;</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/fdas-latest-telehealth-warning-letters">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[PMOS and Food Noise: What New Research Reveals About a Long-Overlooked Struggle]]></title><description><![CDATA[Women living with (what was until very recently known as) PCOS have universally described an experience of dismissal by the modern healthcare system.]]></description><link>https://onthepen.substack.com/p/pmos-and-food-noise-what-new-research</link><guid isPermaLink="false">https://onthepen.substack.com/p/pmos-and-food-noise-what-new-research</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Mon, 15 Jun 2026 22:54:30 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!SlZR!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff763d776-e9df-4404-a05b-ca16494c0d85_1755x1320.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Women living with (what was until very recently known as) PCOS have universally described an experience of dismissal by the modern healthcare system. They talked about relentless hunger, stubborn weight gain, insulin resistance, fatigue, and a relationship with food that felt fundamentally different from what others around them seemed to empathize with.&#8230;</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/pmos-and-food-noise-what-new-research">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[Retatrutide’s ADA Moment Has Arrived]]></title><description><![CDATA[The American Diabetes Association&#8217;s Scientific Sessions always produce a flood of obesity and diabetes news.]]></description><link>https://onthepen.substack.com/p/retatrutides-ada-moment-has-arrived</link><guid isPermaLink="false">https://onthepen.substack.com/p/retatrutides-ada-moment-has-arrived</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Thu, 11 Jun 2026 17:38:07 GMT</pubDate><enclosure url="https://i.scdn.co/image/ab6765630000ba8ab0a0a3e5482d3a8780d59fff" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>The American Diabetes Association&#8217;s Scientific Sessions always produce a flood of obesity and diabetes news. Every year brings new data, new molecules, and new promises about what the future of treatment might look like. This year was no different. Yet when the dust settled in New Orleans, one drug seemed to dominate nearly every conversation among pati&#8230;</p>
      <p>
          <a href="/__u/onthepen.substack.com/p/retatrutides-ada-moment-has-arrived">
              Read more
          </a>
      </p>
   ]]></content:encoded></item><item><title><![CDATA[Retatrutide Before FDA Approval? Lilly Just Changed the Conversation]]></title><description><![CDATA[We&#8217;re back!]]></description><link>https://onthepen.substack.com/p/retatrutide-before-fda-approval-lilly</link><guid isPermaLink="false">https://onthepen.substack.com/p/retatrutide-before-fda-approval-lilly</guid><dc:creator><![CDATA[On The Pen GLP-1 News]]></dc:creator><pubDate>Tue, 09 Jun 2026 21:22:39 GMT</pubDate><enclosure url="https://i.scdn.co/image/ab6765630000ba8a840c9b6b77cdafac35207270" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>We&#8217;re back! Today on the podcast, Dave breaks down this previously unreported pre-FDA <a href="https://clinicaltrials.gov/study/NCT07629401?viewType=Card&amp;intr=Retatrutide&amp;rank=2">approval program</a> that Eli Lilly has quietly established for Retatrutide.</p><ul><li><p>What it might mean for patients</p></li><li><p>Who may qualify and how</p></li><li><p>Why this is important for the meta conversation about obesity </p></li></ul>
      <p>
          <a href="/__u/onthepen.substack.com/p/retatrutide-before-fda-approval-lilly">
              Read more
          </a>
      </p>
   ]]></content:encoded></item></channel></rss>