Retatrutide Calculator

A triple-hormone-receptor agonist (GLP-1, GIP, Glucagon) currently in clinical trials.

Half-life: ~6 days

IMPORTANT: Research-only compound. Not FDA approved as of 2025. Phase 3 trials ongoing. Not medical advice. Consult a licensed physician before use.

Reconstitution Calculator

10mg
20mg
Concentration
5.00 mg/mL
Volume to Draw
0.400 mL
U-100 Insulin Syringe
40 units

How to Reconstitute

  1. Wipe the top of the peptide vial and the bacteriostatic water vial with an alcohol swab.
  2. Draw exactly 2mL of air into a large syringe (18-22G needle recommended) and inject it into the bacteriostatic water vial.
  3. Draw out exactly 2mL of bacteriostatic water.
  4. Insert the needle into the peptide vial. Angle the needle so the water runs slowly down the inside glass wall of the vial. Do not squirt it directly onto the powder.
  5. Remove the syringe. Gently swirl the vial in a circular motion until the powder dissolves completely. Never shake the vial.

Storage Guide

Unreconstituted (Powder)

-20°C long-term, 2-8°C (36-46°F) short-term.

Reconstituted (Liquid)

2-8°C (36-46°F) refrigerated for up to 28-30 days.

Never freeze after reconstitution. Protect from light.

Injection Guide

Needle

30-31G, 8mm, 1mL (U-100) insulin syringe for injection. 18-22G for drawing water.

Injection Sites

  • Abdomen (2 inches away from navel)
  • Front of thighs
  • Back of upper arms

Rotate injection sites weekly.

Technique

Pinch skin, insert needle at 45-90 degrees, inject slowly. No aspiration needed for subQ.

Typical Titration Schedule

TimelineDose
Weeks 1-42.0mg / week
Weeks 5-84.0mg / week
Weeks 9-126.0mg / week
Weeks 13+8.0mg / week (phase 2 protocol)
For research/educational purposes only. Not medical advice. Consult a licensed physician before use.