What is Retatrutide and how is it different?

Retatrutide is a triple agonist that activates GLP-1, GIP, and glucagon receptors simultaneously. This triple mechanism showed unprecedented weight loss in clinical trials - up to 24% body weight reduction - surpassing both Semaglutide and Tirzepatide.

What is the recommended Retatrutide starting dose?

Clinical trials started participants at 1mg weekly, with gradual titration up to 8-12mg over several months. Given its potency, starting low and increasing slowly is especially important to minimize side effects.

Is Retatrutide FDA approved?

As of 2024, Retatrutide is still in Phase 3 clinical trials and not yet FDA approved. It is being developed by Eli Lilly and shows promising results for both weight loss and type 2 diabetes management.

What are Retatrutide side effects?

Similar to other GLP-1 agonists, common side effects include nausea, diarrhea, vomiting, and constipation. The glucagon component may also affect blood sugar differently than pure GLP-1 agonists.

Precision Tool

Retatrutide Dosage Calculator

Calculate the exact injection volume needed for your desired Retatrutide dose. Enter your peptide amount, water volume, and target dose below.

Input Values

Peptide Vial Size

Total peptide in your vial

Bacteriostatic Water

Amount of BAC water added

Desired Dose

Your target dose per injection

Results

Concentration

6.00 mg/mL

Volume to Inject

0.167 mL

Insulin Syringe

16.7 units

on a 100-unit (1mL) syringe

Total Doses Per Vial

12 doses

Draw to the 16.7 unit mark on your insulin syringe to get exactly 1mg of peptide.

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Titration Schedule

16+ weeks typical

Current Selection

Week 1-4 — 1mg

Titration schedules may vary. Always follow your clinician's guidance.

Retatrutide is a triple agonist (GLP-1/GIP/Glucagon).

Start with lower doses and titrate slowly.

Inject once weekly subcutaneously.

Frequently Asked Questions

See all GLP-1 medications compared

Our comprehensive reference guide covers every GLP-1 agonist — from approved blockbusters like semaglutide to next-gen candidates in clinical trials. Compare efficacy, side effects, cost, and delivery routes.

Read the Full Guide

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