Compare · regulatory status only

Compounded semaglutide vs Ozempic: what is actually different?

Ozempic and Wegovy are FDA-approved semaglutide drugs, made by Novo Nordisk under full pharmaceutical oversight and legal by prescription everywhere in the U.S. Compounded semaglutide is a copy made by a pharmacy - broadly permitted only while the FDA's shortage lasted, a permission that ended in spring 2025. And gray-market 'research use only' vials are neither of those things: unapproved products outside any quality system. The molecule may match; the regulatory reality does not.

Status comparison, not advice - Peptlas compares legality and oversight, never effects. Published Aug 27, 2026 (ET) · sources below

Compounded semaglutideRestrictedPharmacy-made copy - shortage-era permission ended 2025verified Aug 11, 2026 (ET) · full status page →
Ozempic / WegovyFDA-approved drugFDA-approved semaglutide drugs (Novo Nordisk)

Side by side

Compounded semaglutideOzempic / Wegovy
Approval statusNot an approved product - a copy compounded under pharmacy rulesFDA-approved drugs (Ozempic, Wegovy)
Legal to obtain todayRoutine copies no longer permitted - permission ended Apr 22, 2025 (503A) / May 22, 2025 (503B); narrow patient-specific exception onlyYes, by prescription
Why it existed at allThe declared drug shortage - copying an approved drug is otherwise prohibitedStandard approval pathway
Quality oversightPharmacy/outsourcing-facility standards; the product itself was never FDA-reviewedFull GMP manufacturing, approved dosing, pre-filled pens
Ingredient formFDA has flagged some products built on salt forms (semaglutide sodium/acetate) rather than the base used in the approved drugsSemaglutide base
What changes nextFDA's proposed permanent 503B exclusion - comments closed Jul 30, 2026, decision pendingNothing pending

Three tiers, not two

Most confusion around 'semaglutide vs Ozempic' comes from collapsing three different things into two. Tier one is the approved drug: Ozempic and Wegovy, made by Novo Nordisk, FDA-reviewed, dispensed in fixed-dose pens. Tier two is compounded semaglutide: a copy made by a licensed pharmacy or outsourcing facility - legal at scale only while the FDA's shortage declaration lasted, and wound down by April-May 2025. Tier three is the gray market: vials sold online as 'research use only', which are neither approved nor compounded and sit outside any quality system - what that label legally does is its own story.

The full dated timeline of tier two's rise and end - shortage, wind-down dates, the pending 503B exclusion - is on the compounded semaglutide status page, and the mechanics are explained in why compounded semaglutide is going away.

What this comparison is not

This page compares regulatory status, oversight, and legality - not effectiveness, safety for you, or price. Peptlas makes no health claim about any product and recommends nothing; those are questions for a licensed clinician. If you use compounded or gray-market semaglutide vials, the reconstitution calculator does the unit arithmetic without selling you anything.

Asked and answered

Is compounded semaglutide the same as Ozempic?
No. Ozempic is an FDA-approved drug made by Novo Nordisk under pharmaceutical manufacturing standards. Compounded semaglutide is a pharmacy-made copy that was broadly permitted only during the FDA-declared shortage; that permission ended April 22, 2025 for 503A pharmacies and May 22, 2025 for 503B facilities. The FDA has also flagged that some non-approved products use salt forms of semaglutide rather than the base form in the approved drugs.
Can I still legally get compounded semaglutide?
Routine compounded copies are no longer permitted. A narrow exception survives for patient-specific products that are not essentially a copy of the approved drug, prescribed for a documented clinical need. The FDA has proposed permanently excluding semaglutide from the 503B bulks list; that decision is pending.
Are the 'research use only' semaglutide vials sold online the same thing as compounded semaglutide?
No - that is a third category. Compounded semaglutide comes from licensed pharmacies under pharmacy law. Research-use-only vials are unapproved products sold with a disclaimer that attempts to keep the seller outside drug regulation; they carry no required quality system, and the FDA has warned sellers marketing them for human use.

Sources

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