References ScienceDirect Bremelanotide: pharmacology, toxicology, and therapeutic overview (active metabolite of Melanotan II) PMC (2022) Bremelanotide for treatment of female hypoactive sexual desire: mechanism, trials, and safety review ResearchGate (2022) Effect of bremelanotide on body weight of obese women: data from two phase 1 randomized controlled trials Mayo Clinic Bremelanotide (subcutaneous route): side effects, dosage, and precautions MedlinePlus Patient instructions for subcutaneous injections: site rotation and technique
doi:10.3390/antiox9050425 Gerdts J, Brace EJ, Sasaki Y, DiAntonio A, Milbrandt J
Within approved clinical trial settings, the preparation of injectable investigational medicinal products (IMPs) must comply with Good Clinical Practice (GCP), the trial protocol, and local aseptic compounding policies
If you're getting a cyanocobalamin (also present in oral and sublingual B12) that's more likely to cause negative reactions