Short answer Wegovy (semaglutide, made by Novo Nordisk) is an FDA‑approved, clinically tested, prefilled‑pen product for weight loss with strict manufacturing and labeling controls. “Compounded semaglutide” is a preparation made by a compounding pharmacy from raw active ingredient and is not FDA‑approved as a finished drug — it can be less expensive but carries real quality, potency and sterility risks. Key differences (what actually matters) Regulatory status and evidence Wegovy: FDA approved for chronic weight management at labeled doses (2.4 mg weekly). Approval means clinical trials on safety and efficacy and ongoing oversight. Compounded: Not FDA‑approved as a finished product. Compounded versions don’t come with Wegovy’s large, controlled clinical‑trial safety/efficacy data for that specific formulation and delivery system. Manufacturing quality and testing Wegovy: Manufactured by Novo Nordisk under pharmaceutical GMPs with batch testing and lot traceability. Compounded: Quality depends on the pharmacy. Some do excellent sterile work; others may have variable potency, contamination risk, incorrect excipients, or unstable concentrations. Sterility and safety Wegovy pens are designed for multi‑dose use and are manufactured sterile. Compounded vials or syringes must be sterile‑compounded under USP <797> conditions — if not, there’s risk of infection or particulate contamination. Dose accuracy and devices Wegovy: comes in calibrated, prefilled pens with dose escalation instructions and consistent delivery. Compounded: may be supplied in vials or prefilled syringes (or in some cases pens made by third parties). Accuracy, ramp‑up dosing, and device reliability vary. Labeling, instructions, follow‑up Wegovy includes full prescribing info, known side‑effect profile, and post‑marketing safety monitoring. Compounded products typically have less standardized labeling and you’ll have fewer regulatory protections if something goes wrong. Cost and access Wegovy is expensive; coverage varies. Novo Nordisk has support programs. Compounded semaglutide is often cheaper and may be paid out‑of‑pocket, which is why many people choose it despite the risks. When a compounded product might be reasonable If Wegovy is unaffordable or unobtainable and: you work with a reputable, accredited compounding pharmacy that sterily compounds GLP‑1 injectables, the pharmacy can provide certificates of analysis (COAs), sterility/ endotoxin testing, API source documentation, expiration/stability data and lot traceability, your prescriber documents benefits/risks and is experienced with GLP‑1 therapy. What to ask / check if you consider compounded semaglutide Is the pharmacy accredited (PCAB or ACHC) and do they comply with USP <797> sterile compounding? Can they provide a recent COA and sterility test results for your lot? What is the source of the active pharmaceutical ingredient (API)? How is it dosed and which delivery device is supplied? What training comes with it? What is their return and adverse‑event policy? Practical alternatives / resources (specific names) Wegovy (Novo Nordisk) — recommended if you want an FDA‑approved option with known safety/efficacy and a manufactured pen device. Ozempic (semaglutide, Novo Nordisk) or Rybelsus (oral semaglutide) — approved for diabetes; sometimes discussed with clinicians for weight management under medical supervision (different approvals/labels). Zepbound (tirzepatide, Eli Lilly) — FDA approved for weight loss (different drug class but similar clinical effect). Novo Nordisk OneSupport — manufacturer patient support and savings program for Wegovy (helps with cost/insurance navigation). GoodRx — price comparison and coupons that sometimes reduce Wegovy/Ozempic costs. Look for compounding pharmacies accredited by PCAB or ACHC and following USP <797> — ask the pharmacy directly for accreditation and COAs. My short recommendation If your priority is proven safety, consistent dosing, regulatory protection and device reliability: choose Wegovy (Novo Nordisk) if you can afford it or get coverage/help via OneSupport. If cost is prohibitive and you consider compounded semaglutide, only use a highly reputable, accredited compounding pharmacy, get documentation (COA, sterility), and discuss risks with your prescribing clinician. If you want, tell me: whether you’re comparing prices/insurance coverage or researching safety, and I can point to patient assistance resources and how to evaluate specific compounding pharmacies near you.
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