GLP-1 weight management
Compounded tirzepatide
tirzepatide (compounded)
Custom-compounded tirzepatide. Cheaper than Zepbound/Mounjaro. Not FDA-approved.
- Manufacturer
- 503A/503B compounding pharmacies
Why is Compounded tirzepatide prescribed?
Compounded version of tirzepatide, produced by 503A/503B pharmacies. NOT FDA-approved. FDA declared tirzepatide off the shortage list in early 2025, and on April 30, 2026 proposed permanently removing it from the 503B bulk-compounding list (comment period through June 29, 2026). Large-scale compounded tirzepatide is ending. Plan a transition to branded Zepbound or Mounjaro.
How does Compounded tirzepatide work?
Pharmacologically identical to branded tirzepatide. Dual GLP-1/GIP receptor agonist.
Who qualifies for Compounded tirzepatide?
Same eligibility as branded tirzepatide.
How should Compounded tirzepatide be used?
Same titration as Zepbound.
What should I do if I forget a dose?
Typically dosed weekly matching branded protocols. Take within 4 days of scheduled day or skip and resume. Do not double up. Side effects may be more pronounced on resumption if you've missed multiple doses.
What side effects can Compounded tirzepatide cause?
Same as branded tirzepatide.
What interactions should clinicians watch for?
Same tirzepatide interaction profile as Zepbound/Mounjaro: insulin, sulfonylureas, oral contraceptives, warfarin. Compounded formulations may include additional ingredients (B12, lipotropics) with their own profiles — review your specific vial label and disclose to prescriber.
What special precautions should I follow?
Pregnancy & lactation
Not recommended during pregnancy or breastfeeding. Discontinue 1-2 months before planned conception. The 2026 compounding legality narrowing means many patients are transitioning to branded Zepbound or Mounjaro — pregnancy planning is a reasonable additional trigger to switch.
Alcohol
Same considerations as branded tirzepatide: gastric emptying delay changes alcohol absorption, GI side effects amplified. Moderate amounts on non-titration weeks if you drink. Compounded products with additional ingredients may have additive effects — check your formulation.
What does Compounded tirzepatide cost?
$250-500/month vs branded $1,000+. Pharmacy quality varies.