Is PT-141 the same as Viagra?

No. Viagra works on blood vessels; PT-141 works on central melanocortin pathways involved in desire.

Is PT-141 approved for men?

It is FDA-approved only for premenopausal women with HSDD. Male erectile dysfunction studies did not lead to approval.

It is given as a subcutaneous injection about 45 minutes before anticipated sexual activity.

sexual

PT-141

Bremelanotide (PT-141) is a melanocortin receptor agonist approved for hypoactive sexual desire disorder in premenopausal women. It acts on central sexual desire pathways rather than vascular mechanisms.

Ian Gauntt, RN BSN1 min readHuman RCT

Aliases: Bremelanotide, Vyleesi

Educational content only — this is not medical advice. Nothing here is a recommendation to buy, obtain, or use PT-141. Talk to a licensed clinician before making health decisions.

What it is

PT-141 is a heptapeptide synthetic analog of alpha-melanocyte-stimulating hormone. It activates melanocortin receptors in the central nervous system to increase sexual arousal and desire. Unlike sildenafil, it does not primarily act on penile vasculature.

What the evidence shows

Two Phase 3 trials (RECONNECT) in premenopausal women with hypoactive sexual desire disorder showed statistically significant improvements in sexual desire and distress with bremelanotide 1.75 mg versus placebo. Onset is rapid, and it is used on demand.

Risks & unknowns

The most common adverse events are nausea, flushing, injection-site reactions, headache, and vomiting. Bremelanotide can cause transient increases in blood pressure and reductions in heart rate; it is contraindicated in uncontrolled hypertension and cardiovascular disease. It can also cause focal skin hyperpigmentation with repeated use.

Legal / regulatory status

Bremelanotide is FDA-approved as Vyleesi for acquired, generalized hypoactive sexual desire disorder in premenopausal women. It is prescription-only. Use in men or for erectile dysfunction is off-label and not FDA-approved.

FAQ

Is PT-141 the same as Viagra?: No. Viagra works on blood vessels; PT-141 works on central melanocortin pathways involved in desire.
Is PT-141 approved for men?: It is FDA-approved only for premenopausal women with HSDD. Male erectile dysfunction studies did not lead to approval.
How is it taken?: It is given as a subcutaneous injection about 45 minutes before anticipated sexual activity.

References

Bremelanotide for female sexual dysfunction (JAMA Netw Openhuman RCT
Efficacy and safety of bremelanotide (Obstet Gynecolhuman RCT
FDA approval of Vyleesi (bremelanotide)regulatory