Retatrutide calculator
Retatrutide is Eli Lilly's triple agonist, still in phase 3 and not approved anywhere. The phase 2 trial in NEJM tested 1, 4, 8 and 12 mg once weekly for 48 weeks and saw 8.7% to 24.2% weight loss against 2.1% on placebo.
Retatrutide at a glance
Retatrutide units chart
10 mg vial. Rows are doses; columns show the units to draw on a U-100 syringe at each water volume.
| Dose | mL | U-100 units | Doses per vial |
|---|---|---|---|
| 100 mcg | 0.02 | 2 | 100 |
| 200 mcg | 0.04 | 4 | 50 |
| 250 mcg | 0.05 | 5 | 40 |
| 500 mcg | 0.1 | 10 | 20 |
| 1 mg | 0.2 | 20 | 10 |
| 2 mg | 0.4 | 40 | 5 |
| 2.5 mg | 0.5 | 50 | 4 |
| 5 mg | 1 | 100 | 2 |
| 10 mg | 2 | 200 | 1 |
Other mixes: 10 mg + 1 mL · 10 mg + 3 mL · 5 mg + 2 mL · 20 mg + 2 mL
Retatrutide questions
Retatrutide dosage chart?
Trial doses were 1, 4, 8 and 12 mg once weekly, with the higher arms starting at 2 mg and stepping up every 4 weeks. The commonly reported self-dosing ladder is 0.5 to 1 mg for 4 weeks, 2 mg, 4 mg, 6 mg, then 8 mg. On a 10 mg vial in 2 mL that is 10 to 20 units, 40, 80, 120 (two draws) and 160 units.
How much retatrutide should I start with?
The trial arms with the fewest stomach problems started at 2 mg or lower. Most self-reported users start at 0.5 mg to 1 mg and hold 4 weeks. Starting at 4 mg is where the trial saw the worst early nausea.
How much bacteriostatic water for a 10 mg vial of Retatrutide?
Any volume the vial holds. 10 mg in 1 mL is 10 mg/mL, in 2 mL is 5 mg/mL and in 3 mL is 3.333 mg/mL. The water changes the units per dose, not the amount of peptide.
- 1Licensed Peptides two accredited labs on every lot, certificates public, card and Apple Pay checkout
- 2Core Peptides long track record, public certificates, wide catalog
- 3Ascension Peptides public third-party testing, clear pricing