Switching between semaglutide and tirzepatide is increasingly common — whether due to plateaus, side effects, cost changes, or availability. Here's how the transition works clinically.
When to Consider Switching
Plateau: If weight loss has stalled for 8+ weeks at maximum dose, switching medications engages different receptor pathways and often restarts progress.
Side effects: If GI symptoms remain problematic despite dose adjustment, the other medication may be better tolerated.
Cost: Compounded semaglutide is generally cheaper than tirzepatide. If cost is a factor, switching to semaglutide may be sustainable long-term.
Dose Translation
There's no official dose equivalency between semaglutide and tirzepatide — they work on different receptors. Most prescribers restart at a mid-range dose of the new medication rather than the lowest dose, since you've already demonstrated GLP-1 tolerability. Typical transitions:
| From | To | Common Starting Dose |
|---|---|---|
| Semaglutide 1.0mg | Tirzepatide | 5mg (skip 2.5mg) |
| Semaglutide 2.4mg | Tirzepatide | 5-7.5mg |
| Tirzepatide 10mg | Semaglutide | 0.5-1.0mg |
| Tirzepatide 15mg | Semaglutide | 1.0mg |
⚕️ Compounded medications are not FDA-approved. They are prepared by licensed pharmacies under physician supervision.
⚕️ Compounded medications are not FDA-approved. They are prepared by licensed pharmacies under physician supervision.
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⚕️ Compounded medications are not FDA-approved. They are prepared by licensed pharmacies under physician supervision.