Compounded Semaglutide: What It Is, Safety, Legal Status and Cost in 2026
Compounded semaglutide is a pharmacy-made version of the GLP-1 medicine semaglutide. Here is how it is made and regulated, what the FDA has warned about, how to check a pharmacy, and what you should expect to pay.
Compounded semaglutide is semaglutide that a licensed pharmacy mixes for an individual patient, usually as a weekly injection from a vial. It is not FDA-approved and is not the same as any brand-name medication, so its quality depends on the pharmacy that makes it. In 2026 it can still be prescribed when a prescriber documents a clinical reason for a compounded version, and it should only come from a state-licensed pharmacy using the same form of semaglutide found in approved products.
- Compounded semaglutide is not FDA-approved. The FDA does not review compounded drugs for safety, effectiveness or quality before they are sold.
- The FDA declared the semaglutide shortage resolved on February 21, 2025.
- A 503A pharmacy can still compound semaglutide for an individual patient when the prescriber documents a change that makes a significant difference for that patient.
- The FDA warns that "salt forms" (semaglutide sodium and semaglutide acetate) are different active ingredients from the one in approved drugs.
- As of May 31, 2026, the FDA had received 990 adverse event reports linked to compounded semaglutide.
What compounded semaglutide is
Semaglutide is a GLP-1 receptor agonist. It acts like a natural gut hormone that tells your brain you are full, slows how fast your stomach empties, and helps your body release insulin when blood sugar is high. Most people take it once a week.
"Compounding" means a pharmacist combines or changes drug ingredients to make a medicine for a specific patient. Compounded semaglutide is made this way, usually as a liquid in a multi-dose vial that you draw up with a syringe. Some pharmacies add other ingredients, such as vitamin B12.
The key thing to understand: the FDA does not review compounded drugs for safety, effectiveness or quality before they reach patients. Each pharmacy's process and testing decide what is in the vial. That is why choosing the pharmacy matters as much as choosing the medicine.
For how the medicine works week to week, see our semaglutide dosage chart, and for how it compares with the other main GLP-1 option, read semaglutide vs tirzepatide.
Injectable vs oral and sublingual forms
Most compounded semaglutide is an injection under the skin. Some sellers also offer compounded oral versions, such as tablets, capsules or drops placed under the tongue (sublingual).
| Form | How it is taken | What to know |
|---|---|---|
| Injectable (vial) | Weekly shot under the skin | The most common compounded form. You measure each dose yourself, so clear labeling and the right syringe matter. |
| Oral tablet or capsule | By mouth | Semaglutide is hard for the body to absorb from the gut. Little published evidence shows how well compounded oral versions work. |
| Sublingual drops or tablets | Under the tongue | Same absorption question, and very little published research. |
If you are weighing a pill or drops, our compounded oral semaglutide guide goes deeper, and GLP-1 pill vs injection covers the trade-offs.
503A pharmacies vs 503B outsourcing facilities
Federal law has two main paths for compounding, named after sections of the Federal Food, Drug, and Cosmetic Act.
| 503A compounding pharmacy | 503B outsourcing facility | |
|---|---|---|
| What it is | A traditional state-licensed pharmacy | A facility that chooses to register with the FDA |
| Prescriptions | Needs a valid prescription for an individual patient | Can fill patient prescriptions or orders from providers such as hospitals |
| Manufacturing standards | Exempt from federal current good manufacturing practice (CGMP) rules; follows state rules | Must meet CGMP requirements |
| FDA inspection | Mainly overseen by state boards of pharmacy | Inspected by the FDA on a risk-based schedule and must report adverse events |
Most compounded semaglutide prescribed to individual patients today comes from 503A pharmacies. The FDA notes that state-licensed pharmacies that are not outsourcing facilities are not required to report adverse events to the FDA, which is one reason problems may be undercounted.
Is compounded semaglutide legal in 2026?
Yes, in specific circumstances. Here is how the rules changed and where they stand now.
| Date | What happened |
|---|---|
| Until February 2025 | Semaglutide injection was on the FDA drug shortage list. During a shortage, pharmacies may make close copies of a drug to fill the gap. |
| February 21, 2025 | The FDA determined the semaglutide shortage was resolved. |
| April 24, 2025 | The FDA's grace period for 503A pharmacies making copies ended. |
| May 22, 2025 | The grace period for 503B outsourcing facilities ended. |
| 2026 | The FDA continues to warn about unapproved GLP-1 drugs sold online and has sent warning letters to compounders. |
What is allowed now. Without a shortage, a 503A pharmacy generally cannot make products that are "essentially copies" of an approved drug. A compounded product is not considered a copy when a prescriber determines and documents that it contains a change that produces a significant difference for that specific patient. Examples might include a dose or strength that is not commercially available, or a different formulation the patient needs.
What the FDA is watching. The FDA has said that adding an ingredient does not automatically make a product different. Its guidance gives semaglutide combined with vitamin B12 as an example that may still be treated as a copy. In a September 2026 warning letter, the FDA also flagged prescriber "significant difference" notes that were repeated word for word across many records, which suggests a menu choice rather than a real individual decision.
💡 What this means for you
Ask your prescriber why a compounded version is right for you, and expect that reason to be written in your record. A real clinical reason, a licensed pharmacy and clear labeling are the signs of a legitimate prescription.
Safety: what the FDA has warned about
Semaglutide itself carries the same side effects whether it is compounded or not, most often nausea, vomiting, diarrhea and constipation. The extra risks with compounded versions come from how the product is made, labeled and dosed.
1. Salt forms: semaglutide sodium and semaglutide acetate
Some products sold as "semaglutide" are made with salt forms of the molecule. The FDA says semaglutide sodium and semaglutide acetate are different active ingredients from the one used in approved drugs, and it is not aware of any lawful basis for using them in compounding. Ask your pharmacy which ingredient it uses. You want plain semaglutide (sometimes called semaglutide base).
2. Dosing errors
Compounded vials come in different strengths, and you measure each dose yourself. The FDA has received reports of people taking 5 to 20 times their intended dose after drawing up the wrong amount, and of providers miscalculating doses by 5 to 10 times. Some patients needed hospital care for problems such as severe vomiting, dehydration, pancreatitis and gallstones.
The FDA recommends that pharmacies give you a syringe suited to your dose and show you how to measure it. Always use the syringe your pharmacy supplies, and call the pharmacy if the vial strength changes. Our guide to needle size for GLP-1 injections explains why the syringe matters.
3. Adverse event reports
As of May 31, 2026, the FDA had received 990 reports of adverse events associated with compounded semaglutide. The agency says these are likely underreported, partly because 503A pharmacies are not required to report to the FDA.
4. Add-ins such as vitamin B12
Some pharmacies add vitamin B12 (cyanocobalamin) or other ingredients. There is little evidence that B12 in the same vial improves weight loss or reduces side effects, and the FDA has said a B12 combination may still be treated as a copy. An add-in is not a reason to choose a product.
5. Storage and shipping
- Throw out a multi-dose vial 28 days after first use, even if medicine is left, per FDA advice.
- Do not use an injection that arrives warm or without enough cold packing. The FDA recommends against it.
- Look before you inject. Do not use liquid that is cloudy, has particles or has changed color.
How to vet a compounding pharmacy
The FDA's own advice is to get a prescription from a licensed prescriber and fill it at a state-licensed pharmacy. Use this checklist before you start.
Is this pharmacy safe to use?
Check the column that fits what you found:
✅ Good signs
- You can look up its license on your state board of pharmacy website
- If it calls itself a 503B facility, it appears on the FDA's registered outsourcing facility list
- A licensed prescriber reviewed your health history before prescribing
- It confirms it uses semaglutide, not a sodium or acetate salt
- The vial label shows the pharmacy name, strength in mg per mL and a beyond-use date
- It sends a syringe matched to your dose and shows you how to use it
- It ships cold and tells you what to do if a package arrives warm
🚩 Red flags
- No prescription or health review needed
- Sold as "for research use only" or "not for human use"
- It will not name the pharmacy that makes the product
- The ingredient is listed as semaglutide sodium or acetate
- The label does not show the strength or a date
- It claims to be FDA-approved or the same as a brand-name drug
- Only cash apps, crypto or wire transfers accepted
The FDA's BeSafeRx program also has tips for spotting unsafe online pharmacies.
What compounded semaglutide costs
Prices vary a lot, because sellers bundle different things into the monthly price. Before you compare numbers, check what each one actually includes.
| Cost item | Questions to ask |
|---|---|
| Medication | Is the price the same at every dose, or does it rise as your dose goes up? |
| Provider visit | Is the first visit included? Are follow-up visits and dose changes extra? |
| Supplies | Are syringes, alcohol pads and a sharps container included? |
| Shipping | Is cold shipping included, and what happens if a package arrives warm? |
| Plan length | Is the low price only on a long plan? What does month-to-month cost? |
Insurance usually does not cover compounded medicines, so most people pay cash. For a dose-by-dose look at prices, see compounded semaglutide monthly cost.
The FDA-approved semaglutide option
Wegovy is the FDA-approved semaglutide medicine for chronic weight management, made by Novo Nordisk. It comes as a weekly pen and as a daily pill. Insurance coverage for weight loss varies, so check your plan first.
If you pay yourself, NovoCare Pharmacy lists these self-pay prices as of October 2026:
| Wegovy product and dose | NovoCare self-pay price |
|---|---|
| Pen, 0.25 mg or 0.5 mg (new patients, first 2 monthly fills, through December 31, 2026) | $199 per month |
| Pen, 0.25 mg to 2.4 mg | $349 per month |
| Pen, 7.2 mg (HD) | $399 per month |
| Pill, 1.5 mg | $149 per month |
| Pill, 4 mg | $199 per month |
| Pill, 9 mg or 25 mg | $299 per month |
- Have commercial insurance? The Wegovy savings offer says you may pay as little as $25 per month, with up to $100 in monthly savings. People with government insurance are excluded.
- On Medicare? Medicare's GLP-1 Bridge pilot, which started July 1, 2026, covers Wegovy for eligible people with a $50 monthly copay. Your prescriber has to submit a prior authorization.
- Prices change. Confirm the current price on NovoCare before you order.
If your insurance covers Wegovy, or you qualify for the Medicare Bridge, that is likely your cheapest path, and it is the option with full FDA review behind it.
Getting treatment through Rx.com
Rx.com offers compounded semaglutide from $99/month on a 12-month plan. The online provider visit, medication, supplies and cold shipping are included, with one flat price at every dose and no insurance needed. A licensed provider decides whether it is right for you. Compounded medications are not FDA-approved and are not the same as any brand-name medication.
Not sure which GLP-1 fits you? Start with the short questionnaire at Rx.com weight loss, or read about compounded tirzepatide as an alternative.
🚨 When to Contact Your Healthcare Provider
Call your prescriber, or Poison Control at 1-800-222-1222, if any of these happen. Call 911 for fainting, trouble breathing or severe pain.
- Severe stomach pain that will not go away, with or without vomiting: possible pancreatitis or gallbladder problems.
- Vomiting or diarrhea you cannot keep up with, or signs of dehydration such as dizziness or very little urine.
- You think you injected too much: call Poison Control right away.
- A lump or swelling in your neck, trouble swallowing or hoarseness.
- Signs of an allergic reaction, such as swelling of the face, lips or throat, or a spreading rash.
- Redness, warmth, pus or fever around an injection site.
You can report side effects or a product problem to the FDA through MedWatch.
Frequently Asked Questions
What is compounded semaglutide?
It is semaglutide prepared by a licensed pharmacy for an individual patient, usually as a weekly injection from a vial. It is not FDA-approved and is not the same as any brand-name medication.
Is compounded semaglutide legal?
Yes, in specific cases. The shortage ended in February 2025, but a 503A pharmacy can still compound semaglutide for an individual patient when the prescriber documents a change that makes a significant difference for that patient.
Is compounded semaglutide safe?
It can be when it comes from a licensed pharmacy that uses plain semaglutide and labels the vial clearly, and when you measure doses carefully. The FDA has warned about salt forms, dosing errors and products sold online without a prescription.
What is the difference between semaglutide and semaglutide sodium?
Semaglutide sodium is a salt form of the molecule. The FDA says salt forms are different active ingredients from the one in approved drugs. Ask your pharmacy to confirm it uses semaglutide, not a salt.
Does adding B12 make compounded semaglutide better?
There is little evidence it does. The FDA has also said that a semaglutide and B12 combination may still be treated as a copy of an approved drug.
Is compounded oral semaglutide as good as the injection?
There is little published evidence on how well compounded tablets or drops are absorbed. Our compounded oral semaglutide guide covers what is known.
How long does a vial last once opened?
The FDA advises throwing out a multi-dose vial 28 days after first use, even if medicine is left. Follow the beyond-use date on your label if it is sooner.
How much does compounded semaglutide cost?
It varies by seller and by what is included. Rx.com offers compounded semaglutide from $99/month on a 12-month plan, with the online provider visit, medication, supplies and cold shipping included.
Sources
- U.S. Food and Drug Administration. FDA's concerns with unapproved GLP-1 drugs used for weight loss (content current as of October 1, 2026). fda.gov
- U.S. Food and Drug Administration. FDA clarifies policies for compounders as national GLP-1 supply begins to stabilize. fda.gov
- U.S. Food and Drug Administration. Resolution of shortages of semaglutide injection products (February 2025). fda.gov
- U.S. Food and Drug Administration. FDA alerts health care providers, compounders and patients of dosing errors associated with compounded injectable semaglutide products. fda.gov
- U.S. Food and Drug Administration. Human drug compounding laws (Sections 503A and 503B). fda.gov
- Novo Nordisk. NovoCare: Price your Wegovy. novocare.com
- Centers for Medicare & Medicaid Services. Medicare GLP-1 Bridge. cms.gov
