What Does "Compounded" Mean?
A compounded drug is prepared for a patient by a licensed compounding pharmacy rather than manufactured as an FDA-approved finished drug product. Compounded does not mean generic, equivalent, or FDA-approved — and it does not automatically mean unsafe. It describes a different regulatory and preparation pathway.
LevelsRX offers compounded semaglutide and compounded tirzepatide — medications containing the same active ingredients as Ozempic, Wegovy, Mounjaro, and Zepbound — produced by FDA-registered compounding pharmacies during ongoing drug shortages, under FDA authorization.
Important distinction: A compounded product should not be marketed or interpreted as the same FDA-approved product simply because it uses the same or a related active ingredient name. They go through different regulatory processes.
What Has the FDA Said?
The FDA has published safety communications regarding compounded semaglutide and tirzepatide, including:
- Reports of fraudulent or counterfeit products misrepresenting themselves as GLP-1 medications
- Dosing errors with compounded injectable semaglutide — particularly around measuring and administering doses from vials
- Concerns about semaglutide salt forms (semaglutide sodium, semaglutide acetate) which differ from the active ingredient in FDA-approved drugs
- Adverse event reports associated with improperly compounded products
The FDA also authorizes compounding of these medications specifically because of ongoing drug shortages — meaning compounding is a legal and regulated pathway during shortage periods, not a grey market. The authorization status may change as brand-name supply normalizes.
Patient Verification Checklist
Clinical verification
- Licensed US prescriber confirmed
- Documented medication name
- Clear dose and titration plan
- Side-effect management instructions
- Follow-up appointment scheduled
- Emergency contact path provided
Pharmacy & product verification
- FDA-registered compounding pharmacy
- Licensed in your state
- Readable, accurate label
- Active ingredient named clearly
- Concentration and units documented
- Storage and expiry instructions
Why Dosing Units Matter
Compounded injectable GLP-1 products typically use multi-dose vials and syringes rather than the pre-filled, single-dose pens used by brand-name medications. If a prescription is expressed in milligrams but the syringe is marked in volume (mL) or units, the patient needs explicit conversion instructions from their healthcare team.
The FDA has linked some serious adverse events to dosing errors with compounded injectable semaglutide. Always confirm the exact dose, concentration, and units with your LevelsRX provider before your first injection — and do not adjust your dose without explicit provider guidance.
Common Side Effects
GLP-1 medications affect the gut and brain. Side effects are most common during the initial dose-titration period and typically diminish as your body adjusts:
- Nausea — most common, especially weeks 1–8. Taking your injection in the evening and eating smaller portions helps significantly.
- Constipation — stay hydrated (64+ oz water daily) and maintain dietary fiber intake.
- Vomiting or diarrhea — less common; more likely with rapid dose escalation.
- Fatigue — often related to reduced caloric intake, not the medication directly.
- Injection site reactions — mild redness or bruising, usually transient.
Serious adverse events including pancreatitis and gallbladder disease are rare but documented. Seek medical attention immediately for severe abdominal pain, persistent vomiting, or signs of a serious allergic reaction.