PT-141 Calculator
PT-141 (also known as Bremelanotide) reconstitution and dosage reference — calculate vial concentration, BAC water volume, and exact syringe units below.
Also known as: Bremelanotide, Vyleesi
At the reference preset of a 10mg PT-141 vial reconstituted with 2 mL of bacteriostatic water, a 1.75mg dose measures 35 units on a U-100 insulin syringe.
PT-141 (bremelanotide) is a melanocortin receptor agonist FDA-approved as Vyleesi for acquired hypoactive sexual desire disorder in premenopausal women at a 1.75 mg subcutaneous dose.
- Concentration
- 5 mg/mL
- Draw volume
- 0.35 mL
- Units (U-100)
- 35
- Doses per vial
- ≈ 5
- Reference preset
- 10mg · 2mL · 1.75mg
Reference values from the default preset — adjust the calculator below for your vial.
What is PT-141?
PT-141 (bremelanotide) is a melanocortin receptor agonist FDA-approved as Vyleesi for acquired hypoactive sexual desire disorder in premenopausal women at a 1.75 mg subcutaneous dose. Off-label use in men for erectile function is widespread but not FDA-approved.
| 5 mg | lyophilized powder |
| 10 mg | lyophilized powder |
| 0.5 mg | ≈ 10 U-100 units (at 10mg / 2mL) |
| 1 mg | ≈ 20 U-100 units (at 10mg / 2mL) |
| 1.75 mg | ≈ 35 U-100 units (at 10mg / 2mL) |
| 2 mg | ≈ 40 U-100 units (at 10mg / 2mL) |
How it's typically prepared
Reconstitute with BAC water; refrigerate.
Frequently asked questions
- Is PT-141 the same as bremelanotide?
- Yes. PT-141 is the development code; bremelanotide is the INN; Vyleesi is the commercial brand.
- What's the FDA-approved dose?
- 1.75 mg subcutaneous, taken at least 45 minutes before anticipated sexual activity, no more than once per 24 hours and no more than 8 doses per month.
Other Sexual peptides
PeptideDose is an educational reference. It is not medical advice and does not replace consultation with a licensed healthcare provider. Doses shown in presets are derived from published protocols and product labels — they are not personal recommendations.