If you've been using a lower-cost “compounded” version of semaglutide or tirzepatide and you're worried it'll vanish from your pharmacy - here's the plain-English situation. Those compounded copies were phased out in 2025 once the FDA declared the shortages over. Your old supply chain may be ending, but your treatment doesn't have to.
Related reading. This page explains what changed and why. If you are on a compounded preparation right now and want the practical steps in order, read coming off a compounded GLP-1: a step-by-step transition plan. For the head-to-head on how the two products actually differ — regulatory category, manufacturing oversight, dosing units, cost and safety data — see compounded vs brand semaglutide.
What changed, in plain terms
During the 2022–2024 shortages, pharmacies were allowed to make their own “compounded” copies of these medications, which were much cheaper. Once the FDA declared the shortages resolved in 2025, that permission ended - federal law only allows compounding these patent-protected drugs during a true shortage. So the compounded versions are no longer broadly available, and patients have moved to the brand-name products (Wegovy, Ozempic, Mounjaro, Zepbound) or adjusted their plans.
Why “just switch to the brand” isn't the whole story
The active drug is the same molecule, so on paper switching is simple. Two real-world wrinkles: first, compounded and brand versions can use slightly different inactive ingredients, so a minority of people get a brief return of nausea after switching - usually fixable by slowing the dose down. Second, cost: a compounded version might have run a few hundred dollars a month, while brand-name list price can exceed $1,000 without insurance. So the smart move is to treat the switch as a chance to re-check your labs and your plan, not just swap one pen for another. The bigger picture on these drugs is in semaglutide vs tirzepatide and medical weight loss vs diet culture. For more on Medicare coverage of GLP-1 medications in Michigan, see our guide to GLP-1 Medicare coverage in Michigan.
Are the compounded and brand versions really the same?
The molecule behaves the same once it's in your body - semaglutide has roughly a one-week half-life either way. The brand versions go through stricter manufacturing and stability testing and come in tested pens; compounded versions were mixed by pharmacies and could vary more in concentration and consistency. This wasn't a safety recall - the FDA didn't find widespread problems - it's about the legal rules once the shortage ended. Most people tolerate both about equally.
How we handle the switch at Arbour
When someone comes in on a compounded GLP-1, we start with labs - blood sugar (HbA1c), fasting insulin, cholesterol, and thyroid - to see what the medication has actually accomplished, not just what the scale says. From there we map options: switch to the brand at an equivalent dose (and pursue insurance prior authorization when it's possible), adjust the dose, or, if the medication has become unaffordable, build a structured plan to protect your results with nutrition, strength training, and monitoring before stopping - not after regain starts.
What I see in clinic: the patients who transition smoothly are the ones who plan ahead - line up the brand prescription or the prior authorization, and lock in the protein and training habits early - rather than scrambling when the last refill runs out.
Frequently Asked Questions
Why did the FDA end compounded semaglutide and tirzepatide?
Because the official shortages were declared resolved. Federal law only lets pharmacies compound copies of these patent-protected drugs during a shortage or for a specific documented medical need. Once the manufacturers could meet demand, broad compounding was no longer allowed.
Can I still get a compounded version?
Only in rare cases where a clinician documents a specific medical need the brand product can't meet - for example, an allergy to an inactive ingredient. Cost or preference alone doesn't qualify. Most people switch to the brand version or adjust their plan.
What's the real difference between compounded and brand?
The same active drug, but the brand versions have stricter manufacturing oversight, tested pens, and more stability testing. Compounded versions were mixed by pharmacies and could vary more. Most patients tolerate both about equally. The full head-to-head is in compounded vs brand semaglutide.
Will insurance cover the brand version?
It varies a lot. Many Michigan plans cover Ozempic for diabetes but not for weight loss; Wegovy (approved for weight loss) often needs prior authorization showing a qualifying BMI and a prior attempt at lifestyle change. We help with that paperwork when coverage is possible.
What happens if I just stop?
There's no withdrawal, but appetite returns over about 4–6 weeks as the drug clears, and most people regain a large share of the weight within a year without a structured plan. The key is putting nutrition, strength training, and monitoring in place before stopping. Our step-by-step transition plan sets out how to do that in order.
Will switching brands bring back side effects?
For most people, no. A minority get mild, temporary nausea for a week or two after switching, usually solved by easing the dose up more slowly.
If this resonates
If you're on a compounded GLP-1 and want a clinician-guided transition rather than a scramble, we can help. A $35 consultation covers your current regimen, your insurance, and your labs, and ends with a clear plan that protects your progress.
Arbour Longevity · 2217 Packard St #15, Ann Arbor, MI 48104 · (734) 436-3357 · Thursday through Monday, 10am to 7pm.
References
- U.S. Food and Drug Administration. Updates on compounded GLP-1 medications and resolved drug shortages (2025).
- FDA Drug Shortages database. Semaglutide and Tirzepatide shortage status.
- Wilding JPH, et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP 1). NEJM 2021;384:989-1002.
This article is educational and reflects regulatory information as of 2025–2026; it does not replace individualized medical or legal advice.
Gandhi Bhattarai, FNP-BC, PMHNP-BC, Anti-Aging/Functional Medicine BC
Triple board-certified nurse practitioner and founder of Arbour Longevity in Ann Arbor. Every article is written from clinic practice and reviewed against current guidelines.
✓ Medically reviewed · Last updated June 8, 2026
How we reviewed this article
Arbour Longevity articles are written by the treating clinician, checked against primary sources (peer-reviewed journals, FDA labeling, Endocrine Society and other specialty guidelines) and re-reviewed when guidance changes. See our editorial policy. Spotted an error? Email info@arbourlongevity.com.
This article is educational and is not a substitute for individualized medical advice. Whether a treatment is appropriate for you is determined during consultation.
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