title: Sildenafil: an oral drug for impotence.
mesh_terms: D000284:Administration, Oral; D004305:Dose-Response Relationship, Drug; D004347:Drug Interactions; D004791:Enzyme Inhibitors / Q000008:administration & dosage*; D007172:Erectile Dysfunction / Q000188:drug therapy*; D005252:Fees, Pharmaceutical; D006801:Humans; D007022:Hypotension / Q000139:chemically induced; D008297:Male; D010879:Piperazines / Q000008:administration & dosage* / Q000009:adverse effects / Q000493:pharmacokinetics; D011687:Purines; D016032:Randomized Controlled Trials as Topic; D000068677:Sildenafil Citrate; D013450:Sulfones
chemical_list: D004791:Enzyme Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate