PT-141 Dosage for Men & Women: How Much, How Often & Which Form

By Verum Health Medical Team · April 1, 2026 · 7 min read

PT-141 (Bremelanotide) is the only peptide approved for sexual dysfunction via an FDA-recognized mechanism — it works on the central nervous system to enhance sexual arousal and desire in both men and women. Here's how dosing works.

How PT-141 Works

Unlike Viagra or Cialis which work peripherally (increasing blood flow), PT-141 activates melanocortin receptors in the brain — specifically the hypothalamus — to increase sexual desire directly. This makes it effective for both psychological and physiological sexual dysfunction.

PT-141 Dosage — Nasal Spray

The nasal spray is the most convenient form and well-suited for both men and women:

PT-141 Dosage — Injectable

• Starting dose: 0.5–1mg subcutaneous injection
• Standard dose: 1–2mg (physician-determined)
• Timing: 2–4 hours before activity
• Frequency: No more than once every 72 hours

PT-141 for Women

PT-141 is particularly effective for women with hypoactive sexual desire disorder (HSDD) — low libido that isn't explained by relationship or situational factors. Clinical trials showed significant improvement in desire and satisfying sexual events in premenopausal women.

PT-141 for Men

In men, PT-141 enhances sexual desire and arousal even when PDE5 inhibitors (Viagra/Cialis) have stopped working or are contraindicated. It can be used alone or stacked with sildenafil/tadalafil.

Common Side Effects

• Nausea (most common, typically mild, passes within 1–2 hours)
• Flushing
• Transient blood pressure changes — physician evaluation required