Cyclic GMP phosphodiesterase-5: target of sildenafil.

3',5'-Cyclic-GMP Phosphodiesterases/antagonists & inhibitors,metabolism Animals Caffeine/metabolism Cyclic GMP/metabolism Cyclic Nucleotide Phosphodiesterases, Type 5 Hemodynamics Humans Male Models, Chemical Penis/blood supply Phosphodiesterase Inhibitors/pharmacology Piperazines/pharmacology Purines Sildenafil Citrate Sulfones

Phosphodiesterase Inhibitors Piperazines Purines Sulfones Caffeine Sildenafil Citrate 3',5'-Cyclic-GMP Phosphodiesterases Cyclic Nucleotide Phosphodiesterases, Type 5 PDE5A protein, human Cyclic GMP