PT-141, also known as bremelanotide, is a peptide that activates melanocortin receptors in the brain involved in sexual desire and arousal. Unlike medications such as sildenafil, which act on blood flow, PT-141 works through the central nervous system. A branded form of bremelanotide is FDA-approved for premenopausal women with low sexual desire, and PT-141 has also been studied in men. It is taken as needed rather than daily.
What is PT-141?
PT-141 is a synthetic peptide developed from research into melanocortins, a family of hormones involved in pigmentation, appetite and sexual function. During early research, scientists observed that compounds acting on melanocortin receptors influenced sexual arousal. PT-141 was developed to focus on that effect.
Today PT-141 is one of the most searched peptides in sexual health, and it sits within SYNC's Hormonal Health category.
How does PT-141 work?
PT-141 activates melanocortin receptors, mainly the MC4 receptor, in areas of the brain involved in sexual desire. Activating these receptors is studied for its role in the signaling pathways that drive desire and arousal.
This central mechanism is what makes PT-141 distinctive. Medications like sildenafil support the physical response by increasing blood flow. PT-141 acts earlier in the process, on desire itself. That's why it is of interest to people whose main concern is desire or arousal rather than physical function alone.
PT-141 for women
A branded form of bremelanotide was approved by the FDA in 2019 for premenopausal women with acquired, generalized hypoactive sexual desire disorder, meaning persistently low sexual desire that causes distress. Its approval was based on clinical trials that studied changes in desire and in the distress associated with low desire.
For women exploring PT-141, a clinician reviews health history, current medications and goals to decide whether it fits. PT-141 is taken as needed, so it fits around your life rather than requiring a daily routine.
PT-141 for men
PT-141 has been studied in men in clinical research, including in men with erectile dysfunction and men who had not responded to other treatments. Because it acts on central desire pathways rather than blood flow, it offers a different mechanism from the medications most men are familiar with.
At SYNC, PT-141 is available to men and women. Your clinician reviews your history and goals to decide whether PT-141 is the right fit and sets your dose.
How is PT-141 taken?
PT-141 is taken by subcutaneous injection, a small injection just under the skin, on an as-needed basis ahead of sexual activity rather than every day. Your clinician sets your dose and how often you can use it.
Your order arrives cold in discreet packaging with a home injection kit, including needles, alcohol pads and the tools you need, plus clear guidance on how to prepare and take each dose.
What are the side effects of PT-141?
Most side effects of PT-141 are mild and temporary. The most common is nausea, which is most noticeable with the first doses and often eases over time. Other reported effects include flushing, headache and injection-site reactions. PT-141 can cause a temporary rise in blood pressure, which is why your clinician reviews your cardiovascular health before prescribing. With repeated use, some people notice darkening of small areas of skin.
If you notice any side effects, you can message your clinician 24/7 through the patient portal, and they can adjust your dose or protocol.
PT-141, prescribed for you. Start Your Protocol.
How to get PT-141 prescribed online
1. Complete the Blueprint Quiz and choose Hormonal Health as your goal.
2. Complete the clinical pre-screening.
3. A board-certified, state-licensed clinician reviews your answers within 24 hours.
4. Your protocol is prepared by a licensed and inspected 503A pharmacy and delivered within 3 business days of approval.
For the full process, see our step-by-step guide to getting peptides prescribed online.
IMPORTANT INFORMATION
Compounded medications are prepared by licensed pharmacies for individual patients. They are not FDA-approved and have not been evaluated by the FDA for safety, effectiveness or quality. This article is for educational purposes and is not medical advice. Speak with a licensed clinician about whether a treatment is right for you.
Clinically reviewed by
Amelia Baweja
