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What does PT-141 do for men?

In a placebo-controlled trial in men with erectile dysfunction, PT-141 produced a statistically significant erectile response, with the first erection starting around 30 minutes after dosing.

Melanocortin agonistUpdated

Short answer

In a placebo-controlled trial in men with erectile dysfunction, PT-141 produced a statistically significant erectile response, with the first erection starting around 30 minutes after dosing.[1]

In men whose erectile dysfunction did not respond to sildenafil, 33.5% had a positive clinical response on bremelanotide versus 8.5% on placebo.[2]

Limits and safety

Flushing and nausea were the most common adverse events across these early studies in men.[1]

In the sildenafil-failure trial, drug-related adverse effects were more frequent with bremelanotide than with placebo.[2]

The only approved bremelanotide product states it is not indicated in men, so these trials did not lead to a male indication.[3]

More on PT-141

Sources

  1. 1Double-blind, placebo-controlled evaluation of the safety, pharmacokinetic properties and pharmacodynamic effects of intranasal PT-141, a melanocortin receptor agonist, in healthy males and patients with mild-to-moderate erectile dysfunction.International journal of impotence research · 2004PMID 14963471Accessed 2 Oct 2026
  2. 2Salvage of sildenafil failures with bremelanotide: a randomized, double-blind, placebo controlled study.The Journal of urology · 2008PMID 18206919Accessed 2 Oct 2026
  3. 3VYLEESI prescribing information (FDA label)FDA label, DailyMed · current labeldailymed.nlm.nih.govAccessed 2 Oct 2026

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