What is PT-141 (Bremelanotide)?
PT-141, also known as Bremelanotide, is a synthetic peptide designed to enhance sexual desire and arousal in both men and women. Unlike traditional medications for erectile dysfunction (which act on blood vessels), PT-141 works directly on the central nervous system, targeting the brain’s hypothalamic pathways to naturally increase libido.
How Does PT-141 Work?
PT-141 activates melanocortin-4 receptors (MC4R) in the brain areas linked to sexual desire, mood, and motivation.
This central action promotes the release of neurotransmitters such as dopamine, which plays a key role in pleasure and arousal.
In men, PT-141 enhances erections and sexual satisfaction, even for those unresponsive to PDE-5 inhibitors like Viagra or Cialis.
In women, it helps increase sexual desire and improve satisfaction during intimacy.
Key Benefits
- Promotes natural sexual arousal and desire.
- Improves satisfaction and mood.
- May benefit individuals resistant to conventional ED medications.
- Acts quickly typical onset within 30 to 60 minutes.
Indications
- Erectile Dysfunction (ED) in men.
- Female Sexual Dysfunction (FSD) and Hypoactive Sexual Desire Disorder (HSDD).
- Low libido or sexual motivation related to stress or hormonal changes.
What You Need to Know
PT-141 is generally well tolerated. Mild, short-term side effects may include nausea, headache, or facial flushing.
It should not be used during pregnancy or in individuals with uncontrolled hypertension or cardiovascular disease.
Dose
10 mg/vial
Dosing Guideline:
1–2 mg (0.1–0.2 mL or 10–20 units) subcutaneously, up to three times per week or 1–2 hours before desired effect.

