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GLP-1 comparison

Compounded vs Brand Semaglutide

The same molecule, prepared two very different ways. Compounded is a fraction of the cost. Brand — Wegovy and Ozempic — is FDA-approved, batch-tested, and backed by pivotal trials. Here is the honest trade-off.

Compounded

Lower cost, less oversight

~$150–$400/month. Same active molecule; often includes B12 or glycine. Multi-dose vial with an insulin syringe. Only legal while the FDA lists semaglutide as being in shortage.

Brand (Wegovy / Ozempic)

FDA-approved, trial-backed

~$1,000–$1,350/month list. Pre-filled pens with fixed dose steps. GMP manufacturing and full batch testing. Sometimes covered by insurance; savings cards available.

A note on safety.

The FDA has warned about serious dosing errors and adverse events with compounded GLP-1 products. If you use compounded semaglutide, source it from a licensed US 503A/503B pharmacy that publishes third-party lab testing, verify the vial concentration before every dose, and use the calculator on this hub to convert mg to insulin-syringe units precisely.

Side by side

Regulatory status in the US
CompoundedPrepared by a state-licensed or 503A/503B pharmacy
BrandFDA-approved finished drug product
Manufacturer
CompoundedCompounding pharmacies (variable)
BrandNovo Nordisk
Active ingredient
CompoundedSemaglutide (often with B12, glycine, or other additives)
BrandSemaglutide (single active ingredient)
Under FDA shortage list
CompoundedOnly permitted while the FDA declares a shortage
BrandNo — commercially available
Batch testing
CompoundedDepends on the pharmacy; not standardized
BrandFull FDA GMP + release testing every batch
Dosing format
CompoundedMulti-dose vial, drawn with a U-100 insulin syringe (units)
BrandPre-filled autoinjector (mg dose per click)
Concentration
CompoundedVaries by pharmacy (commonly 2.5, 5, or 10 mg/mL)
BrandFixed per pen (Wegovy: 0.25 → 2.4 mg; Ozempic: 0.25 → 2 mg)
Titration flexibility
CompoundedAny dose can be drawn — allows micro-doses and non-standard steps
BrandFixed FDA-labelled dose steps
Typical monthly cost (US)
Compounded~$150–$400 depending on pharmacy
Brand~$1,000–$1,350 list price
Insurance coverage
CompoundedRarely covered
BrandSometimes covered; manufacturer savings cards available
Clinical trial evidence for the specific product
CompoundedNone — trials studied the brand product
BrandSTEP, SUSTAIN, SELECT, SURMOUNT trial data
Quality risk factors
CompoundedAdditives, potency variance, sub-potent lots reported
BrandStandardized potency, storage, and stability
Common source in the US
CompoundedTelehealth clinics + 503A compounding pharmacies
BrandRetail pharmacies with a prescription
Storage
CompoundedRefrigerated; check pharmacy-specific stability
BrandRefrigerated before first use, room-temp per label after
Best fit
CompoundedCost-constrained users; those needing non-standard titration
BrandUsers prioritizing FDA oversight, insurance coverage, or trial-matched dosing

Highlighted cells indicate the clearer choice on that row. Sourced from FDA guidance and prescribing information — see references below.

Draw the right units, every time

Compounded vials are drawn with an insulin syringe. One decimal place difference is a double or half dose. The GLP-1 Dose Calculator does the mg-to-units math from your prescribed dose and vial concentration.

Open the dose calculator

Which one is right for you?

Cost is the deciding factor and you have no coverage

Compounded semaglutide from a reputable 503A pharmacy can be a fraction of the brand's list price. If insurance won't cover Wegovy and you cannot afford the out-of-pocket cost, compounded is the practical route — with informed consent on the trade-offs.

You want FDA oversight and trial-verified potency

Brand semaglutide is what STEP, SUSTAIN, and SELECT actually studied. Every batch is manufactured to GMP standards and released against FDA specifications. If regulatory rigor matters to you, take the brand.

You have partial insurance coverage

Coverage plus a manufacturer savings card can put the brand within striking distance of compounded pricing. Always check current copays before assuming the brand is out of reach.

You have cardiovascular disease

The SELECT trial evidence for reducing major cardiovascular events was on brand Wegovy specifically. That indication does not automatically transfer to compounded formulations. If CV benefit is the reason you are on semaglutide, the brand is the right choice.

This is educational information, not a prescription or medical advice. Whether compounded semaglutide is appropriate — and where to source it — is a decision to make with a licensed clinician who knows your medical history.

Frequently Asked Questions

Common questions and answers about our calculator

Sources

Tool Information

Last reviewed

August 5, 2026

Reviewed by

Dr. Jaydeep Sanghani

Created by

Meet Akabari

Dr. Jaydeep Sanghani

Dr. Jaydeep Sanghani

MBBS, MD, DNB(Anaesth.), PDCC(CCM), DrNB(CCM)

AIIMS Bhubaneswar · AIIMS Rishikesh

Critical care specialist and anesthesiologist with advanced training from AIIMS. Reviews health calculators at Calqulate to ensure medical accuracy and evidence-based standards.