Sildenafil
Sildenafil treats erectile dysfunction by increasing blood flow to the penis through PDE5 inhibition. Structure of Sildenafil Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor with a complex heterocyclic structure, including a pyrazolopyrimidinone core. Chemical Formula: C₂₁H₁₁N₄O₃S Mode of Action PDE5 Inhibition: Sildenafil selectively inhibits PDE5, an enzyme responsible for the degradation of cyclic guanosine … Read more