0.25mg of Retatrutide from a 24mg vial in 2.5mL: how many units?

Answer

Draw 2.6 units on a U-100 insulin syringe. A 24 mg Retatrutide vial reconstituted with 2.5 mL of bacteriostatic water is 9.6 mg/mL, so 0.25 mg is 0.026 mL. That vial holds about 96 doses at this strength.

This page also answers

  • How many units is 0.25mg of reta?
  • 0.25mg reta on a U-100 syringe
  • What do I draw for 0.25mg if I used 2.5ml?
  • 0.25 mg reta in units

Your draw

Vial 24 mg
Bacteriostatic water 2.5 mL
Concentration 9.6 mg/mL
Dose 0.25 mg
Volume to draw 0.026 mL
U-100 syringe 2.6 units
U-40 syringe 1 units
Doses per vial 96

Dose chart: 24 mg vial in 2.5 mL

DoseVolumeU-100 unitsU-40 unitsDoses per vial
0.25 mg 0.026 mL 2.6 1 96
0.5 mg 0.052 mL 5.2 2.1 48
0.75 mg 0.078 mL 7.8 3.1 32
1 mg 0.104 mL 10.4 4.2 24
1.5 mg 0.156 mL 15.6 6.3 16
2 mg 0.208 mL 20.8 8.3 12
2.5 mg 0.26 mL 26 10.4 9
3 mg 0.313 mL 31.3 12.5 8
3.5 mg 0.365 mL 36.5 14.6 6
4 mg 0.417 mL 41.7 16.7 6
5 mg 0.521 mL 52.1 20.8 4
6 mg 0.625 mL 62.5 25 4
7 mg 0.729 mL 72.9 29.2 3
8 mg 0.833 mL 83.3 33.3 3
9 mg 0.938 mL 93.8 37.5 2

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 2.5 mL.
Is that on a U-100 or U-40 syringe?
2.6 units is the U-100 reading, the standard insulin syringe at 100 units to 1 mL. On a U-40 syringe the same 0.026 mL reads 1 units.
How many 0.25 mg doses will this vial give?
About 96 doses from a 24 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.