PDE5 inhibitors / Cialis / Viagra (PDE5i, Tadalafil class) — Research Compounds Library | RetatrutideCompare

Class of oral phosphodiesterase-5 inhibitors (sildenafil, tadalafil, vardenafil, avanafil) FDA-approved for erectile dysfunction and benign prostatic hyperplasia (tadalafil) and pulmonary arterial hypertension (sildenafil, tadalafil).