Compounded medication
How to spot counterfeit GLP-1 medication
October 2, 2026 · 7 min read · Medically reviewed by Bryan Milton, MD · Reviewed October 2, 2026
Counterfeit GLP-1 products have reached patients through unauthorised sellers. What the warning signs are, what to check, and what to do if you suspect one.
Counterfeit GLP-1 medication is a real and documented problem, not a scare story. The FDA has published safety information about products containing semaglutide and tirzepatide from unapproved sources, including seized counterfeits and reports of harm. The useful question is not how to become an expert at spotting fakes — it is how to stay out of the part of the market where they circulate.
Where do counterfeits come from?
Almost always from outside the licensed supply chain: sellers who ship without a prescription, marketplaces and social media sellers, 'wellness' sites with no named pharmacy, and products brought in from abroad. The common feature is that nobody in the chain is accountable to a regulator. A pharmacy that is licensed and inspected has something to lose; an anonymous seller does not.
What are the warning signs?
- No prescription needed. This is the single strongest signal. These medications are prescription-only everywhere in the U.S.
- No named, licensed pharmacy, or a name that does not appear on any state board register.
- 'Research use only', 'not for human consumption', or similar wording on something sold for injection.
- A price far below the market with no explanation, or pressure to buy several at once.
- Payment by methods that cannot be reversed, or requests to pay off-platform.
- Labels with spelling errors, mismatched lot numbers or expiry dates, or text in a language inconsistent with the seller.
- Packaging that differs from what you have received before, or a product whose appearance, colour or viscosity has changed.
- Devices or pens that feel wrong — unfamiliar resistance, a dose counter that behaves differently, a missing seal.
Why physical checks are not enough
Counterfeiters copy packaging well, and a convincing box can contain anything or nothing. Reported counterfeits have included products with no active ingredient, the wrong ingredient, the wrong strength, or non-sterile contents — none of which is visible. Treat appearance as a last line of defence, not the first.
What actually protects you
| Check | Why it matters |
|---|---|
| A prescription from a licensed clinician | Someone accountable has reviewed whether this is appropriate for you |
| A named, licensed pharmacy | The dispensing step sits inside a regulated, inspectable chain |
| A label with your name on it | The medication was dispensed to you, not sold anonymously |
| A route to ask questions | A care team or pharmacist who will confirm what you received |
| Consistency between refills | Changes you can ask about, rather than changes you never see |
What should I do if I suspect a counterfeit?
- Do not use it. If you already have, contact a clinician — and seek urgent care for anything severe.
- Keep the product, the packaging and the receipt. They matter for identifying the source.
- Contact the pharmacy or service you obtained it from and ask them to account for it.
- Report it: the FDA has a reporting route for suspect medication, and your state board of pharmacy handles complaints about pharmacies and sellers.
How does this relate to compounded medication?
They are different things and it is worth not conflating them. A compounded preparation from a licensed pharmacy against a valid prescription is a lawful, traceable medicine that is not FDA-approved. A counterfeit is a criminal product pretending to be something it is not. Compounded medications are not FDA-approved and are not reviewed by the FDA for safety, effectiveness, or quality. Both facts can be true at once, and the way to tell which you are holding is the supply chain, not the vial.
This article is educational and is not a substitute for personalized medical advice. Whether any medication is appropriate for you is a decision for a licensed clinician who has reviewed your health history.