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Compounded semaglutide vs Wegovy: same molecule, different rules, and what the price gap buys

Same molecule, not the same product: Wegovy is FDA-approved and $349/mo from Novo; compounded semaglutide is unreviewed and far cheaper. The gap, live.

Julian CaraulaniFounder, PriceTracker GLP-1Last checked Oct 2 · reviewed by Dr. A. Goher, MDWe track prices. Clinical facts on this site are quoted from the drug's label, the FDA or the published trial, with the source and the date beside each one. We do not write medical guidance and we do not tell anyone what to take.

7 min read · published Oct 2

The short version

  • 1Same molecule: compounded semaglutide is the drug in Wegovy, made by a licensed pharmacy instead of Novo Nordisk.
  • 2Not the same product: FDA reviewed Wegovy for safety, effectiveness and quality; it does not review compounded drugs before they are sold.
  • 3Wegovy pen self-pay is $349/mo at any dose from 0.25 to 2.4 mg ($199 for a new patient's first two fills). The compounded floor is on the live board below.
  • 4What Wegovy adds: a reviewed product, a fixed-dose pen, the $25 commercial card and the $50 Medicare Bridge. What compounded adds: a lower price.
  • 5FDA's documented problems with compounded vials are dosing errors, fake labels, warm shipping and off-label doses. All checkable before you pay.

Compounded semaglutide is the same molecule as Wegovy. It is not the same product. Wegovy is semaglutide made by Novo Nordisk and approved by FDA. Compounded semaglutide is semaglutide mixed by a licensed pharmacy, and FDA has not reviewed it. The drug is identical; the oversight, the packaging, the insurance options and the price are not. Here is each difference, and what it costs.

The short answer, in a table

Compounded semaglutideWegovy
Moleculesemaglutidesemaglutide
Made bya 503A pharmacy or 503B outsourcing facilityNovo Nordisk
FDA-approved productnoyes
Formusually a multi-dose vial and syringefixed-dose pen, or a daily pill
Who measures the doseyou, in units on a syringethe pen
Commercial insurance cardnoas little as $25/mo, capped at $100 savings7
Medicare GLP-1 Bridgeno$50 per 30-day supply, to 31 Dec 20278
Cash pricelive floor below$349/mo pen, $149 to $299 pill6

Same molecule

The active ingredient in a compounded vial and in a Wegovy pen is the same: semaglutide. That is why sellers call it "the same as Wegovy", and on the chemistry they are right. Novo's own line is narrower and also true: "Only Novo Nordisk manufactures FDA-approved semaglutide medicines".5 The two statements do not conflict. One is about the molecule, the other is about who made it and whether FDA checked the result.

Different regulatory status

Wegovy went through FDA's review. A compounded vial did not. In FDA's words, "Compounded drugs are not FDA-approved. This means that FDA does not verify the safety, effectiveness or quality of compounded drugs before they are marketed."4

Not approved does not mean illegal. A licensed pharmacy may compound semaglutide on a prescription. But FDA's view of when that is appropriate is strict: "Compounded drugs should only be used in patients whose medical needs cannot be met by an FDA-approved drug", or when "the FDA-approved drug is not commercially available".1 Price is not on that list. FDA also states that semaglutide does not "currently appear on ... FDA's drug shortage list", and that for 503A pharmacies compounding semaglutide injections, "the period of enforcement discretion ... has ended".9

Who checks the pharmacy depends on which kind it is. A 503A pharmacy answers to its state board of pharmacy and is not held to manufacturing rules. A 503B outsourcing facility is "inspected by FDA according to a risk-based schedule" and its drugs "are subject to current good manufacturing practice (CGMP) requirements".4 Neither makes an FDA-approved product, but 503B is the higher standard. Ask a seller which one fills its prescriptions.

The dollar gap

Novo sells Wegovy direct to cash patients. New patients "pay $199 for each month of 0.25 mg and 0.5 mg" for two fills through 31 December 2026, "then $349 per month for Wegovy 0.25 mg, 0.5 mg, 1 mg, 1.7 mg or 2.4 mg and $399 per month for Wegovy HD".6 The pill is "$149 for each month of 1.5 mg, $199 per month for 4 mg and $299 per month for 9 mg and 25 mg".6 Here is the manufacturer's ladder, dose by dose:

Against that, the cheapest semaglutide we can verify today, almost always a compounded program:

The monthly gap is $349 minus that figure, at every pen dose, because Novo's pen price is flat from 0.25 to 2.4 mg. Over a year, Wegovy's pen is $3,888 for a new patient ($199 × 2 plus $349 × 10) and $4,188 each year after. Multiply the figure above by 12 for the compounded side. Some compounded sellers charge more as the dose climbs, so check the seller's own ladder, not just its headline price. Every verified semaglutide price, ranked all in:

What you give up, and what you get

Choosing Wegovy gets you a product FDA reviewed for safety, effectiveness and quality, a pen that sets the dose for you, and the two programs that cut the price for some buyers: Novo's card, "as little as $25 per month" with a commercial plan that covers it, "subject to a maximum savings of $100/month",7 and the Medicare GLP-1 Bridge, which gives eligible Part D members Wegovy "for a $50 copayment for each 30-day supply" through 31 December 2027.8 If either applies to you, start there: $25 or $50 is the number any compounded price has to beat.

Choosing compounded gets you a lower cash price. What you take on is the set of problems FDA has documented:23

  • Dosing errors. FDA has "received multiple reports of adverse events, some requiring hospitalization, that may be related to dosing errors", from patients "measuring and self-administering incorrect doses" and in some cases from professionals "miscalculating doses".2
  • Doses beyond the label. Reports linked to "doses beyond what is in the FDA-approved drug label".2
  • Fake labels. Products naming pharmacies that "do not exist", or a licensed pharmacy that "did not compound these products".3
  • Warm shipping. FDA's advice is not to use "any injectable GLP-1 drug that arrives warm or with insufficient refrigeration".3
  • The 28-day vial rule. "Discard the vial within 28 days after the first use", even if the compounder's label says longer.3

None of these is about the molecule. Each one is about the pharmacy, the label, the shipping or the syringe, and each one can be checked before you pay. The full list, with how to check each, is on our safety page and in is compounded semaglutide safe.

If you choose compounded

  • Get the name of the pharmacy that fills the prescription and look it up in that state's licence register.
  • Get the vial's concentration in mg per mL and your prescribed dose in mg, in writing. The dose converter turns that into units on a syringe; check its answer against your prescriber's written instruction, and ask the prescriber if they differ.
  • Compare the program's schedule to Wegovy's published ladder in the semaglutide dosage chart. Your dose and schedule are set by your prescriber.
  • Refuse a box that arrives warm, and discard each vial 28 days after first use.

The seller-side checks are in how to check a GLP-1 seller, and the compounded drug's own page is compounded semaglutide.

The verdict

Compounded semaglutide is the same molecule as Wegovy in a product FDA has not reviewed, sold for a fraction of Novo's $349 pen. If a commercial plan covers Wegovy or you qualify for the Medicare Bridge, price Wegovy first: $25 or $50 is the number to beat. If you are paying cash, the gap is thousands of dollars a year, and the trade is reasonable only from a named, licensed pharmacy, at a dose written in mg and units, shipped cold. What Wegovy costs covers every branded route.

Sources9
  1. FDA, concerns with unapproved GLP-1 drugs used for weight loss read Sep 3“FDA is aware that some patients and health care professionals may look to unapproved versions of GLP-1 ... drugs, including semaglutide and tirzepatide, as an option for weight loss. This can be risky for patients, as unapproved versions do not undergo FDA's review for safety, effectiveness and quality before they are marketed. ... Compounded drugs should only be used in patients whose medical needs cannot be met by an FDA-approved drug. ... A compounded drug might be appropriate if a patient's medical need cannot be met by an FDA-approved drug, or the FDA-approved drug is not commercially available. However, compounded drugs are not FDA approved.” ↩
  2. FDA, dosing concerns with compounded semaglutide and tirzepatide read Sep 3“FDA received multiple reports of adverse events, some requiring hospitalization, that may be related to dosing errors associated with compounded injectable semaglutide products. These dosing errors resulted from patients measuring and self-administering incorrect doses of the drug, and in some cases, health care professionals miscalculating doses of the drug. Additionally, the agency has received adverse event reports that may be related to patients prescribed compounded semaglutide or tirzepatide products in doses beyond what is in the FDA-approved drug label.” ↩
  3. FDA, fraudulent compounded GLP-1 drugs, storage and multi-dose vials read Sep 3“FDA is aware of fraudulent compounded semaglutide and tirzepatide marketed in the U.S. that contain false information on the product label. In some cases, the compounding pharmacies identified on the labels of the products do not exist. In other cases, the labels ... contain the name of a licensed pharmacy that, based on information FDA has gathered, did not compound these products. ... FDA has received complaints that certain compounded GLP-1 drugs have arrived warm or with inadequate ice packs ... The agency recommends patients not use any injectable GLP-1 drug that arrives warm or with insufficient refrigeration. ... Discard the vial within 28 days after the first use, even if medication remains in the vial. Do not continue using medication from the vial after 28 days, even if instructions from the compounder say the medication can be used for longer than 28 days.” ↩
  4. FDA, Compounding and the FDA: Questions and Answers read Sep 3“Compounded drugs are not FDA-approved. This means that FDA does not verify the safety, effectiveness or quality of compounded drugs before they are marketed. ... Generally, state boards of pharmacy have primary responsibility for the day-to-day oversight of state-licensed pharmacies that are not registered with FDA as outsourcing facilities. ... Facilities that register with FDA as outsourcing facilities under section 503B are primarily overseen by FDA and inspected by FDA according to a risk-based schedule. ... Drugs compounded in outsourcing facilities are subject to current good manufacturing practice (CGMP) requirements. By contrast, drugs compounded by a licensed pharmacist in a state-licensed pharmacy ... in accordance with the conditions of section 503A of the FD&C Act, are not.” ↩
  5. Ozempic.com read Sep 3“Only Novo Nordisk manufactures FDA-approved semaglutide medicines, like Ozempic.” ↩
  6. NovoCare Pharmacy, Wegovy self-pay prices read Sep 3“Wegovy® pill Starting at $149 per month ... Wegovy® pen Starting at $199 per month ... Patients pay $149 for each month of 1.5 mg, $199 per month for 4 mg and $299 per month for 9 mg and 25 mg. One month defined as 1 bottle of 30 tablets. ... Patients new to the Wegovy Savings Offer and NovoCare Pharmacy pay $199 for each month of 0.25 mg and 0.5 mg. Offer is for 2 monthly fills through December 31, 2026, then $349 per month for Wegovy 0.25 mg, 0.5 mg, 1 mg, 1.7 mg or 2.4 mg and $399 per month for Wegovy HD (semaglutide) injection 7.2 mg.” ↩
  7. Wegovy.com, cost and coverage read Sep 3“WITH COMMERCIAL INSURANCE Pay as little as $25 per month* SELF PAY Starting at $149 per month for the 1.5 mg ... *Pay as little as $25, subject to a maximum savings of $100/month.” ↩
  8. Humana, does Medicare cover weight loss drugs read Aug 28“Medicare Part D doesn't cover weight loss medications when used only for weight loss. ... Part D may cover drugs like Ozempic and Wegovy if they're prescribed for diabetes management or cardiovascular disease. ... Starting July 1, 2026, the Medicare GLP-1 Bridge program will give eligible Part D plan members access to Foundayo, Wegovy (injection or tablet), or Zepbound (KwikPen) weight loss medications for a $50 copayment for each 30-day supply. The Bridge program will run through Dec. 31, 2027” ↩
  9. FDA, proposal to exclude semaglutide, tirzepatide and liraglutide from the 503B bulks list read Sep 3“Tirzepatide and semaglutide do not currently appear on the 503B bulks list or on FDA's drug shortage list. ... For a state-licensed pharmacy or physician compounding, dispensing or distributing semaglutide injection products under section 503A of the FD&C Act, the period of enforcement discretion (described below) has ended.” ↩

Common questions

Is compounded semaglutide the same as Wegovy?

Same molecule, different product. Both contain semaglutide. Wegovy is made by Novo Nordisk and approved by FDA; compounded semaglutide is mixed by a licensed pharmacy and FDA does not verify its safety, effectiveness or quality before it is sold.

How much cheaper is compounded semaglutide than Wegovy?

Wegovy's pen is $349 a month from Novo at any dose from 0.25 to 2.4 mg, $4,188 a year, with $199 for a new patient's first two fills. Compounded prices change weekly; the live floor and every verified price are on our semaglutide board.

Is compounded semaglutide legal?

Yes, from a licensed pharmacy with a prescription. FDA says compounded drugs should be used only when an approved drug cannot meet a patient's need or is not available, and states semaglutide is not on its drug shortage list.

Does insurance cover compounded semaglutide?

No. The $25 commercial savings card (capped at $100 a month) and the $50 Medicare GLP-1 Bridge both apply to Wegovy. If either covers you, compare that $25 or $50 with the compounded floor on our board first.

What are the risks of compounded semaglutide compared with Wegovy?

FDA lists dosing errors from self-measured vials, some leading to hospitalization, doses beyond the label, fake labels, and vials shipped warm. It also says to discard a vial 28 days after first use. None is about the molecule; all are checkable.

Read next

Buying safelyIs compounded semaglutide safe? What FDA actually says, and what it does not11 min · checked Sep 3Buying safelyHow much does Wegovy cost: the pen, the pill, insured, cash, Medicare and compounded, in one table9 min · checked Sep 3Buying safelyHow to check a GLP-1 seller is legitimate, in about ten minutes7 min · checked Sep 2