Verbatim response from Perplexity
The real difference is not the molecule alone; it is the product, regulatory status, and quality controls. Wegovy is an FDA-approved semaglutide medicine made by Novo Nordisk for chronic weight management, while compounded semaglutide is a custom-prepared, non-FDA-approved product made by a compounding pharmacy for an individual prescription.[1][2][3]
Here’s the practical breakdown:
- Same active ingredient, but not the same product: both use semaglutide, but compounded versions are not considered therapeutically equivalent to Wegovy and were not studied in Wegovy’s clinical trials.[2][3]
- Regulation and testing: Wegovy was reviewed by the FDA for safety, effectiveness, and manufacturing quality; compounded semaglutide was not.[1][2][3]
- Manufacturing consistency: Wegovy is made under strict controlled manufacturing standards, while compounded products can vary by pharmacy and formulation.[1][4][6]
- Delivery format: Wegovy is supplied as a fixed-dose pen, which reduces dosing errors; compounded semaglutide is often dispensed as a vial and syringe, so the patient has to measure the dose.[6]
- Cost: compounded semaglutide is usually much cheaper, which is a major reason people seek it out.[4][7][8]
A key caution is that some compounded products may use different salt forms of semaglutide rather than the same base form used in Wegovy; the FDA has said these are not the approved active ingredient.[6][10]
If you are choosing between them, Wegovy is the more evidence-backed and tightly regulated option, while compounded semaglutide is mainly a cost/access workaround and carries more variability in quality and dosing.[1][2][3][13]
If you want, I can also give you a side-by-side safety and cost comparison or explain when compounded semaglutide is legally used.