Class & Mechanism — PT-141, also known as Bremelanotide, is a synthetic peptide that acts as a melanocortin-4 receptor (MC4R) agonist. It mimics the effects of alpha-melanocyte-stimulating hormone (α-MSH), a hormone that plays a role in various physiological processes, including sexual arousal, energy homeostasis, and pigmentation. By targeting MC4R, PT-141 is believed to stimulate neural pathways involved in sexual function and appetite suppression [34].
Research-documented benefits —
– Local corpus: silent.
General-knowledge benefits —
– Bremelanotide has been shown to increase sexual desire and arousal in both men and women, particularly in those with sexual dysfunction [34].
– It has been studied for its potential use in treating conditions like hypoactive sexual desire disorder (HSDD) and erectile dysfunction (ED) [34].
– The peptide may also have an impact on energy balance and food intake, potentially contributing to weight management when used in conjunction with a healthy diet and lifestyle [11].
Typical injectable protocol — Research-only; adult human SC/IM dose range is typically 1.25 mg to 8 mg, administered as needed or on a weekly basis, depending on the individual's response and therapeutic goal.
Key risks / contraindications —
– Known risks include nausea, headache, and injection site reactions.
– Contraindicated in individuals with a history of melanoma or other melanocortin receptor-related cancers.
– Not recommended for use in individuals with uncontrolled hypertension or cardiovascular disease due to potential blood pressure effects.
Bottom line — PT-141 is an investigational peptide primarily used in research settings for the treatment of sexual dysfunction and is not yet approved for widespread clinical use.
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References
- Cosmetic Dermatology_ Products and Procedures
- Endocrinology_ Adult and Pediatric
- GPCRs_ From Deorphanization to Lead Structure Identification
- Handbook of Biologically Active Peptides
- Hypothalamic Integration of Energy Metabolism
- Kosmetik für Ärzte und Apotheker
- Life Force
- Living a Fully Optimized Life
- Mechanisms of Photoaging and Cutaneous Photocarcinogenesis
- Peptide Protocols Volume One — William A Seeds MD
- Peptide Therapeutics_ Design and Development
- Peptide and Protein Design for Biopharmaceutical Applications
- Peptides_ Chemistry and Biology, 2nd Edition
- Pharmacology
- Photoimmunology of Langerhans cells
- The Perricone Prescription
- The Pineal and its Hormones
- Therapeutic Peptides and Proteins Formulation, Processing — Ajay K Banga
- Toxicity by NSAIDs. Counteraction by stable gastric pentadecapeptide BPC 157
- α-MSH related peptides_ a new class of anti-inflammatory and immunomodulating drugs