Desire, Not Just Function
PT-141 Peptide Injections
PT-141 (bremelanotide) is a peptide that acts on melanocortin receptors in the brain to increase sexual desire and arousal. Unlike PDE5 inhibitors, which improve mechanical blood flow, PT-141 addresses libido itself — so it works for men whose desire has faded even when erections are technically possible.
How it works
The mechanism
PT-141 activates MC4 receptors in the hypothalamus, increasing dopamine release in pathways tied to sexual motivation. The effect is centrally mediated, not vascular — making it useful in cases where Viagra® works mechanically but desire is missing.
Who it's for
Best candidates
- Men with low libido despite functional erections
- Patients on antidepressants with sexual side effects
- Men adding to a vitality / longevity stack
Protocol
Subcutaneous injection 1–4 hours before activity, typically 1–2 mg. Some men also use a low-dose maintenance protocol.
Timeline
Onset 1–4 hours. Effect lasts 6–24 hours depending on dose.
What to expect
Side effects & considerations
Possible nausea, transient flushing or temporary blood-pressure rise. Most men tolerate it well at proper dosing.
Frequently asked
PT-141 Peptide Injections FAQs
Pairs well with
Related treatments
Treat the Root Cause
Shockwave Therapy for ED
Low-intensity acoustic waves that regenerate penile blood vessels — drug-free, painless ED treatment.
Regenerative Sexual Wellness
P-Shot® (PRP for Penile Function)
Platelet-rich plasma drawn from your own blood, injected into the penis to support regeneration and performance.
First-Line ED Medication
Viagra® & Cialis® (PDE5 Inhibitors)
Sildenafil and tadalafil — the proven oral medications for erectile dysfunction.
Steady Support
Testosterone Cypionate Injections
The gold-standard injectable testosterone for stable, predictable hormone levels.
Take the first step
Feel like yourself again — book a free consult.
15 minutes. No pressure. A clear plan if you want one.