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⚡ Tirzepatide → Retatrutide (Refinetide™) Transition Guide

Transitioning from tirzepatide (Mounjaro/Zepbound/Trimtide™) to retatrutide (Refinetide™)? This calculator helps you find the right starting dose based on your current regimen and tolerance level.

Choose from conservative, moderate, or aggressive transition approaches tailored to your side effect history and experience with GLP-1 medications.

Current Tirzepatide Dose

Select your current Mounjaro, Zepbound, or Trimtide™ weekly dose

Note: Tirzepatide is available as Mounjaro, Zepbound, or Trimtide™. Standard doses range from 2.5–15 mg weekly.

Choose Your Transition Approach

Select based on your tolerance and side effect history

Your Recommended Starting Dose

From 10 mg tirzepatide

Start Refinetide™ 8 mg

Wait at least 7 days after your last tirzepatide dose before starting retatrutide (Refinetide™)

Refinetide™ is a triple agonist (GLP-1, GIP, glucagon) — expect potentially stronger appetite suppression and metabolic effects than tirzepatide

Monitor for GI side effects during the first 2–4 weeks. Stay hydrated and consider anti-nausea support if needed

If side effects are significant, stay at your current dose for 2+ weeks before considering an increase

Refinetide™ is our premium retatrutide formulation—the newest triple-agonist GLP-1 medication showing superior weight loss results in clinical trials. It's more potent than tirzepatide due to its additional glucagon receptor activity, offering enhanced metabolic benefits and appetite control.

Full Transition Reference

Current TirzepatideConservativeModerateAggressive
2.5 mgStart Refinetide™ 2 mg
5 mgStart Refinetide™ 2 mgStart Refinetide™ 4 mg
7.5 mgStart Refinetide™ 4 mgStart Refinetide™ 6 mgStart Refinetide™ 8 mg
10 mgStart Refinetide™ 4–6 mgStart Refinetide™ 8 mgStart Refinetide™ 10 mg
12.5 mgStart Refinetide™ 6 mgStart Refinetide™ 8–10 mgStart Refinetide™ 10–12 mg
15 mgStart Refinetide™ 8 mgStart Refinetide™ 10 mgStart Refinetide™ 12 mg (max)