Melanocortin agonist
PT-141 ships in 10 mg vials. The FDA-approved Vyleesi dose is 1.75 mg per use. Standard reconstitution of 1 mL bacteriostatic water gives easy dose-on-demand math.
| Dose | 10 mg vial |
|---|---|
| 750 mcg | 7.5units |
| 1 mg | 10units |
| 1.75 mg | 17.5units |
Open the live calculator — change any value and the unit-mark math updates instantly.
Half-life ~2 hours. Effects on libido peak 1-3 hours post-injection, last 6-12 hours.
Refrigerate at 2-8°C after reconstitution. Use within 28 days.
Libido enhancement (FDA-approved as Vyleesi for HSDD in women, off-label use in men). Used on-demand 45-60 minutes pre-activity, not chronically.
The math on this page is correct for the listed vial and BAC-water volume. The decision to reconstitute and inject PT-141 belongs to you and a clinician who knows your full history — not to a webpage.
PT-141 most commonly ships as 10 mg of lyophilized powder. The standard reconstitution is 1 mL of bacteriostatic water, which yields clean unit-mark math on a U-100 insulin syringe for the doses used in most protocols.
The standard volume is 1 mL of bacteriostatic water. You can use more (easier to draw, lower concentration) or less (more concentrated, smaller draw volume) without changing the peptide itself — only the syringe math changes. The dose table on this page is pre-calculated for 1 mL.
Half-life ~2 hours. Effects on libido peak 1-3 hours post-injection, last 6-12 hours.
Refrigerate at 2-8°C after reconstitution. Use within 28 days.
Libido enhancement (FDA-approved as Vyleesi for HSDD in women, off-label use in men). Used on-demand 45-60 minutes pre-activity, not chronically.
U-100 insulin syringes (29–31 gauge, 8–13 mm needle) are standard for subcutaneous peptide injection. Each unit on a U-100 syringe equals 0.01 mL. The dose table above shows how many units to draw for each common dose, given the vial size and standard bacteriostatic water volume.