Mounjaro vs Compounded semaglutide
Editorial comparison of Mounjaro (tirzepatide) and Compounded semaglutide (semaglutide (compounded)). Same drug class context, trial-anchored data, no marketing claims.
Side-by-side
| Dimension | Mounjaro | Compounded semaglutide |
|---|---|---|
| Generic name | tirzepatide | semaglutide (compounded) |
| Manufacturer | Eli Lilly | 503A/503B compounding pharmacies |
| FDA approved | 2022 | — |
| Mechanism | Same as Zepbound — dual GLP-1/GIP receptor agonist. Strong glycemic effect plus weight loss. | Pharmacologically identical to branded semaglutide. Same GLP-1 receptor agonist mechanism. |
| Dosing | Titrated 2.5mg → 15mg weekly over months, same schedule as Zepbound. | Same titration as Wegovy. |
| Cost | Similar to Zepbound — list ~$1,000/month, LillyDirect Self-Pay $399-549/month. | $200-500/month — significantly cheaper than branded ($1,350/month). Quality varies by pharmacy; ask which 503A/B facility the compound comes from before paying. |
| Pivotal trial result | 2.0–2.3% HbA1c reduction across SURPASS trials (15 mg dose) | — |
Full Mounjaro review →
FDA-approved tirzepatide for type 2 diabetes. Off-label for weight loss is common.
Full Compounded semaglutide review →
Custom-compounded semaglutide. Cheaper than branded Wegovy. Not FDA-approved; legal landscape shifts.
Frequently asked
Is Mounjaro or Compounded semaglutide more effective?+
In their pivotal trials, Mounjaro reported 2.0–2.3% HbA1c reduction across SURPASS trials (15 mg dose), while Compounded semaglutide reported no headline result on file. Head-to-head results vary by patient profile, dose tolerated, and adherence — these trial numbers describe averages, not what every individual experiences.
How do Mounjaro and Compounded semaglutide compare on cost?+
Mounjaro: Similar to Zepbound — list ~$1,000/month, LillyDirect Self-Pay $399-549/month. Compounded semaglutide: $200-500/month — significantly cheaper than branded ($1,350/month). Quality varies by pharmacy; ask which 503A/B facility the compound comes from before paying. Real out-of-pocket depends on insurance formulary tier, manufacturer savings programs, and whether a direct-pay channel is available.
Can I switch from Mounjaro to Compounded semaglutide?+
Switching between brand-name treatments in the same drug class is common, but the conversion is not always 1:1. Discuss the switch with your prescriber — they'll usually re-titrate dosing rather than substitute equivalent strengths directly.
Are Mounjaro and Compounded semaglutide the same drug?+
No. Mounjaro (tirzepatide) and Compounded semaglutide (semaglutide (compounded)) are distinct medications from Eli Lilly and 503A/503B compounding pharmacies respectively. They may share a drug class or mechanism but differ in active ingredient, dosing, and approved use.