How to reconstitute PT-141
How to mix a PT-141 vial with bacteriostatic water, plus the unit count for each dose after mixing.
- sizes of vials sold
- 10 mg
- water added to 10 mg gives 5 mg/mL
- 2 mL
- After opening: bacteriostatic water
- A span of 28 days
A step-by-step guide to mixing PT-141
- Wash your hands, then use an alcohol swab on the peptide vial, the bacteriostatic water and both rubber stoppers.
- Take up the amount of water you chose in the syringe. With a 10 mg vial, adding 2 mL results in 5 mg per mL.
- At a slight angle, push the needle through the stopper. Let the water run slowly down the vial's inner wall.
- Gently roll the vial in your hands until the powder has disappeared. Don't shake it.
- Mark the mix date on the vial, then store it as your product or prescription directs.
- Calculate the units for your dose, then draw the syringe to that line.
Chart for reconstituting PT-141
| Vial | Water added | Strength | Units for a sample dose |
|---|---|---|---|
| 10 mg | 1 mL | 10 mg/mL | 2.5 units for 250 mcg |
| 10 mg | 2 mL | 5 mg/mL | 5 units for 250 mcg |
| 10 mg | 3 mL | 3.333 mg/mL | 7.5 units for 250 mcg |
How many units for your PT-141 dose
Label information
Vyleesi (bremelanotide, a 1.75 mg autoinjector) is FDA-approved; research vials lack that approval. Each branded pen and vial includes its own instructions, and those take priority over general steps.
Questions people often ask
When mixing 10 mg of PT-141, how much bacteriostatic water is used?
There's no single correct amount. Adding 2 mL gives 5 mg per mL. Adding more water weakens each unit, so drawing small doses becomes simpler.
Is it okay to mix PT-141 with sterile water?
Because sterile water contains no preservative and is single use, bacteriostatic water is usually used for a mixed vial that you draw from over days. Read more about bacteriostatic vs sterile water.