PT-141 calculator
A melanocortin receptor agonist approved for hypoactive sexual desire disorder in premenopausal women.
Also known as: Bremelanotide, Vyleesi
FDA status FDA-approved as Vyleesi (bremelanotide) for acquired, generalized hypoactive sexual desire disorder in premenopausal women. Research-grade PT-141 sold outside that product is not FDA-approved.
Calculate your draw
Schedule PT-141 → Set your dosing schedule and get a phone notification when each dose is due. Free.
A worked example
A 10 mg vial reconstituted with 2 mL of bacteriostatic water gives 5 mg/mL. A 1000 mcg dose is then 0.2 mL — about 20 units on a 100-unit insulin syringe, giving roughly 10 doses per vial before accounting for residual volume left in the vial and syringe.
Prefer paper? Download the printable PT-141 dosing chart (PDF) — every vial size and water volume in syringe units, with the same review byline as this page. All charts →
Commonly cited dose range
Figures circulating for PT-141 run from 500 mcg to 1750 mcg. The approved product is a fixed-dose autoinjector. Figures here reflect commonly discussed reconstituted vial use.
Read this as reference information, not instruction. These numbers describe what is commonly discussed, not what is right for any individual. Dose, frequency, and whether to use PT-141 at all are decisions for a licensed clinician who knows your history.
Common questions
How many units is 1 mg of PT-141?
With a 10 mg vial in 2 mL of bacteriostatic water (5 mg/mL), 1 mg is 0.2 mL — 20 units on a 100-unit insulin syringe.
Is PT-141 the same as Vyleesi?
Vyleesi is the FDA-approved bremelanotide product, supplied as a fixed-dose autoinjector. Loose PT-141 vials sold as research material are not the approved product and are not reviewed by FDA.