Can PT-141 Maintain Sexual Health?

Can PT-141 Maintain Sexual Health?


There have been promising findings from studies with PT-141 peptide, also known as Bremelanotide acetate, in treating erectile dysfunction and maintaining excellent sexual health. 


Other studies have also demonstrated that PT-141 may benefit female subjects who suffer from female sexual arousal disorder (FSAD). Flushing and nausea are some of the potential adverse effects.


What is Bremelanotide?


Organisms are susceptible to developing HSDD, or Hypoactive Sexual Desire Disorder, for various reasons, the most prevalent of which are high-stress levels and interpersonal difficulties. There are two primary subtypes of HSDD: To be acquired, or to have developed after an average functioning period, and generalized, or to be present all the time independent of context or interpersonal relationships.


Bremelanotide, also known as PT-141 peptide, is a peptide that has shown promising results in treating HSDD, thanks to the convergence of advancing scientific knowledge and the explosive growth of the peptide industry.




Bremelanotide is a 7-amino-acid synthetic peptide under the experimental designation PT-141.


Similar to the human hormone alpha-MSH, this peptide has a similar purpose. This peptide was first tested for therapy in both sexes, but nowadays, it's generally administered to premenopausal female subjects.



The synthetic peptide PT-141, like the naturally occurring hormone alpha-MSH, is agonistic to melanocortin receptors.


Early research indicated that the melanocortin hormone has a regulatory role in many physiological processes. Animals given the isolated hormone had their sexual functions enhanced, corroborating the findings that Melanotan II causes erectile activity in male subjects and PT-141 causes sexual excitation in female models.


The linear peptide Melanotan I and the cyclic peptide Melanotan II are analogs of this hormone that have been isolated and patented for future research. Palatin was the first to create the synthetic peptide PT-141, chemically similar to alpha-MSH, and is thus most likely a metabolite of Melanotan II.


How Does PT-141 Work?


The MC3R and MC4R melanocortin receptors have been demonstrated to be the primary targets of PT-141's agonistic characteristics, leading to heightened reactivity in the central nervous system.


This peptide activates hypothalamic neurons, as shown in these experiments, by binding with the MC3R and MC4R receptors, resulting in enhanced immunoreactivity. Animals who ingest the chemicals experience sexual excitement because they activate neurons in the central nervous system. This research provided clues about how the peptide operates in rats, and those working hypotheses should be transferable to other organisms.


Results from PT-141 research


Treating hypoactive sexual desire conditions in premenopausal female subjects is the primary usage of PT-141 peptide.


It is important to emphasize that experts should only administer this medicine to female models whose sexual desire is low due to underlying physiological or psychological factors or relationship issues.


This medication should not be used by males or females who have gone through menopause. This medicine does not enhance their sexual performance.


Laboratory Research


Animal testing in vitro on female rats

Research on the effects of PT-141 peptide in female rats was published in 2000. Researchers examined the effects of the peptide on the sexual behavior of a female rat model.


Female rats exhibited increased sexual desire after treatment, and the substance did not influence sexual tempo, lumbar lordosis, or any other observable behaviors. The peptide was shown to have a very selective pharmacological impact that activates central nervous system activity, particularly that of melanocortin receptors, leading to increased sexual arousal but no generalized motor activation. This research backed up PT-141's potential as a treatment for poor sexual desire, particularly in females.


Determination of central nervous system effects in female rats used in preclinical research


This investigation aimed to learn more about how this peptide operates in the brain and the rest of the CNS. These studies were conducted on sexually mature female rats whose natural supply of female hormones was abundant. Appetitive behaviors (such as increased speed and agitation) and consummatory behaviors (like lordosis) were studied concerning the rats' sex lives.


This investigation showed that both administration methods enhanced appetitive soliciting behavior levels without changing the sexual speed or lordosis. The hypothalamus and other brain areas were activated by the induced mPOA, which is the fundamental cause of this behavior.


Researchers found critical encouraging characteristics of the peptide for its future application in treating HSDD in females to include not only pharmacological but also behavioral and neuroanatomical effects in the body, as shown in the present research.


Analysis of Multiple Studies with Female Subjects 


This study aimed to analyze the efficacy of several pharmacological treatments for HSDD, arousal disorder, and female sexual dysfunction in female rats.


In 24 randomized clinical investigations, 1723 female subjects with the aforementioned clinical problems were given a placebo, and 2236 females were given the "treatment medication," which may have included Bremelanotide.


Based on this meta-analysis, specialists concluded that the average rise in sexual function index for subjects who were given a placebo was 3.62 percent. Therefore, this medicine has shown promise as a treatment for sexual dysfunction in female test subjects.


Effects of PT-141


The peptide has some adverse effects, which is expected with any medication. As of yet, no serious adverse effects have been documented from using this peptide; nonetheless, the following are some of the more prevalent, though still manageable, contraindications:

  • Nausea (typical)
  • Vomiting (less common) 
  • Headaches
  • Hazy vision
  • Nervousness, anxiety
  • Arrhythmia, or the abnormal occurrence of the heartbeat.
  • Aural trauma




Bremelanotide, also known as PT-141, is a 7-amino-acid cyclic peptide, chemically speaking, similar to the human alpha MSH hormones.


This peptide, like alpha MSH and melanocortin, connects with melanocortin receptors MC3R and MC4R in the brain and spinal cord. After binding, it triggers increased sexual desire by activating the hypothalamus and other brain areas.


Studies have shown considerable favorable benefits in premenopausal female subjects, despite the medication's original intent to treat sexual abnormalities in both sexes. This medicine, authorized by the Food and Drug Administration, is used by all female subjects who suffer from sexual problems, including hypoactive sexual desire and female sexual arousal disorder. It has been shown via several studies that this medicine is very well tolerated and poses little to no risk to patients. Researchers are still looking into the potential uses and advantages of this peptide in medicine, so if you are one of them, you can visit this website to acquire more peptides for your studies.