PT-141 (Bremelanotide)

Melanocortin agonist that triggers libido and arousal via the central nervous system — works for both sexes.

Most ED drugs (Viagra, Cialis) work on the plumbing — blood flow. PT-141 works on the wiring instead: it activates melanocortin receptors in the brain to switch on desire and arousal at the source. That's why it helps low libido in both men and women, and why it can still work when the problem isn't circulation. It's an approved drug for women (Vyleesi). You take it situationally, around 45 minutes ahead — the nausea and flushing in the risks below are the price of that central activation.

Dose

0.5–1.75 mg subQ, 45 minutes before activity.

Reconstitute

10 mg + 2 mL = 5 mg/mL. 10 units = 500 mcg.

Schedule

As-needed, max 1×/24 hours.

Half-life

~2 hours.

Timing

~45 minutes pre-activity.

Educational reference — not medical advice. Many peptides are not approved for the uses discussed; verify status in your jurisdiction and decide anything here with a qualified clinician.

within Sexual Health & Reproductive