MC3R and MC4R agonist in brain reward and hypothalamic circuits modulating sexual arousal. Unlike PDE5 inhibitors, acts on central CNS motivation pathway rather than peripheral vasodilation. Does not require sexual stimulation to work. Dopaminergic and oxytocinergic pathways activated secondarily.
Studies have administered: 1.75mg SC on-demand (approved female HSDD dose); 2mg studied in males
Approved (2019) as Vyleesi for HSDD. Phase 3: significantly improved FSFI desire domain vs placebo. Male studies: improved erectile function in men who failed PDE5 inhibitors. Mechanism distinct from all approved alternatives.
Nausea (most common, ~40%); flushing; hyperpigmentation with repeated use; transient blood pressure changes; headache
These compounds have been examined together in research literature. Combination use is not endorsed or recommended — this information is provided for research context only.
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