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Complete dose-conversion chart, washout period, side effect management, and insurance considerations for moving from Tirzepatide to Semaglutide.
This is the standard equivalency between Tirzepatide and Semaglutide doses. Use it to discuss with your prescriber — never to self-titrate.
| Current (Tirzepatide) | Equivalent (Semaglutide) |
|---|---|
| 2.5 mg tirzepatide | → 0.25 mg semaglutide (titration start) |
| 5 mg tirzepatide | → 0.5 mg semaglutide |
| 7.5 mg tirzepatide | → 1.0 mg semaglutide |
| 10 mg tirzepatide | → 1.7 mg semaglutide |
| 15 mg tirzepatide | → 2.4 mg semaglutide |
Most prescribers wait 7 days between the last dose of Mounjaro and the first dose of Ro Body. This allows the previous drug to clear the system and reduces the risk of GI side effects from overlapping action.
Restart at 0.25 mg semaglutide for at least 4 weeks regardless of prior tirzepatide dose.
Most prescribers recommend 7 days between the last Mounjaro dose and the first Ro Body dose. Always confirm with your prescriber.
Ro Body is a different molecule. Even if you tolerated a high dose of Mounjaro, your body needs to re-adapt. Restart at 0.25 mg semaglutide for at least 4 weeks regardless of prior tirzepatide dose.
Most plans require prior authorization for the new drug, with documentation of why the switch is medically necessary (efficacy plateau, side effect intolerance, cost). Have your prescriber's office prepare a PA before the switch.
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