2.5mg of Retatrutide from a 30mg vial in 3.5mL: how many units?
Answer
Draw 29.2 units on a U-100 insulin syringe. A 30 mg Retatrutide vial reconstituted with 3.5 mL of bacteriostatic water is 8.57 mg/mL, so 2.5 mg is 0.292 mL. That vial holds about 12 doses at this strength.
This page also answers
- How many units is 2.5mg of reta?
- 2.5mg reta on a U-100 syringe
- What do I draw for 2.5mg if I used 3.5ml?
- 2.5 mg reta in units
Your draw
| Vial | 30 mg |
| Bacteriostatic water | 3.5 mL |
| Concentration | 8.57 mg/mL |
| Dose | 2.5 mg |
| Volume to draw | 0.292 mL |
| U-100 syringe | 29.2 units |
| U-40 syringe | 11.7 units |
| Doses per vial | 12 |
Dose chart: 30 mg vial in 3.5 mL
| Dose | Volume | U-100 units | U-40 units | Doses per vial |
|---|---|---|---|---|
| 0.25 mg | 0.029 mL | 2.9 | 1.2 | 120 |
| 0.5 mg | 0.058 mL | 5.8 | 2.3 | 60 |
| 0.75 mg | 0.088 mL | 8.8 | 3.5 | 40 |
| 1 mg | 0.117 mL | 11.7 | 4.7 | 30 |
| 1.5 mg | 0.175 mL | 17.5 | 7 | 20 |
| 2 mg | 0.233 mL | 23.3 | 9.3 | 15 |
| 2.5 mg | 0.292 mL | 29.2 | 11.7 | 12 |
| 3 mg | 0.35 mL | 35 | 14 | 10 |
| 3.5 mg | 0.408 mL | 40.8 | 16.3 | 8 |
| 4 mg | 0.467 mL | 46.7 | 18.7 | 7 |
| 5 mg | 0.583 mL | 58.3 | 23.3 | 6 |
| 6 mg | 0.7 mL | 70 | 28 | 5 |
| 7 mg | 0.817 mL | 81.7 | 32.7 | 4 |
| 8 mg | 0.933 mL | 93.3 | 37.3 | 3 |
Doses that would need more than a full 1 mL syringe are omitted. Use less bacteriostatic water for those.
Common questions
- What if I used a different amount of water?
- Then the unit number changes. Units depend on concentration, not just dose. Run your actual vial size and water volume through the reconstitution calculator rather than copying a number from a chart that assumes 3.5 mL.
- Is that on a U-100 or U-40 syringe?
- 29.2 units is the U-100 reading, the standard insulin syringe at 100 units to 1 mL. On a U-40 syringe the same 0.292 mL reads 11.7 units.
- How many 2.5 mg doses will this vial give?
- About 12 doses from a 30 mg vial. Reconstitution volume doesn't change that. It only changes how many units you draw each time.
- How long is it good for after mixing?
- Refrigerate reconstituted peptide at 36–46°F (2–8°C). Most references give 28–60 days once mixed, depending on the preservative in the bacteriostatic water. Do not freeze it, and inspect for cloudiness or particles before every draw.
Run your own numbers
These figures assume the vial and water volumes named above. Change either one and the units change with it.