Drug facts
Compounded semaglutide vs Wegovy
Quick answer
The active molecule is the same. What differs is everything around it: no FDA approval, no label, no standardized concentration, and no trial of the preparation itself. A compounded vial is not a generic Wegovy — there is no generic semaglutide.
The same molecule1
This is the part that is genuinely shared, and it is why the drug facts on this site are worth reading at all. The boxed warning, the delayed gastric emptying, the mechanism — those attach to semaglutide, not to a manufacturer’s packaging of it.
Approval and review1
Wegovy went through FDA review for safety, effectiveness and manufacturing quality. A compounded preparation has not. Compounding is lawful under specific conditions — see the legal status page — but lawful and reviewed are different words.
The label itself1
On the label — Wegovy / Ozempic
A document that states the dose schedule, the storage limits, the interactions, the contraindications and every reaction rate — and that is updated when the evidence changes, with the change dated.
In a compounded vial
No label of its own. Everything on these pages is read from the approved product’s document and does not automatically describe a compounded vial.
Concentration, and the syringe2
A pen delivers a fixed dose. A compounded vial has a concentration chosen by the pharmacy, so the same milligram dose is a different mark on the syringe from a different vial — the single most consequential practical difference, and the reason units and milligrams exists.
Evidence1
STEP 1, STEP 4 and the rest tested the approved product at supervised doses. No compounded preparation has run a trial. That does not make one ineffective; it means the evidence you are relying on is about something else, and it is worth knowing that when reading a seller’s claims. What the trials found, the salt forms FDA warns about, and the usual reasons a vial seems not to work are on does compounded semaglutide work? What a compounded vial is, and what may be added to it, is on what compounded semaglutide is; the diabetes product is compared on compounded semaglutide vs Ozempic.
Price2
This is the difference people arrive for, and the one this site can actually measure. Every seller’s advertised figure is restated as a true calendar month on the index — because an advertised monthly price and a monthly bill are frequently not the same number.