Retatrutide reconstitution calculator for weight loss
Investigational triple GIP/GLP-1/glucagon receptor agonist from Eli Lilly. TRIUMPH-4 (2025) reported up to 28.7% body weight loss at 12mg weekly. Titrate from 2mg to reduce GI side effects.
Half-life
6.0 days
Storage
2-8°C refrigerated
Route
subcutaneous
Shelf life
28 days
Common side effects
nausea, vomiting, diarrhea, constipation, dysesthesia (skin tingling/burning), injection site reactions, pancreatitis (rare but serious)
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Frequently asked questions
How much bacteriostatic water should I add to Retatrutide?
For a 10mg vial, add 2ml of bacteriostatic water. This concentration works well with a standard insulin syringe. Use the calculator above to see exact units for your dose.
What is the typical Retatrutide dosage?
Typical research dosages range from 2000 to 12000 mcg, administered 1x weekly. The calculator will show a green indicator when your dose is within this range.
How long does reconstituted Retatrutide last?
Store reconstituted Retatrutide at 2-8°C refrigerated. Use within 28 days. Unreconstituted vials can be stored for up to 24 months. Keep away from direct light.