title: A consumer's guide to impotence drugs.
authors.forename: Arthur L
authors.initials: AL
authors.lastname: Burnett
mesh_terms: D015106:3',5'-Cyclic-GMP Phosphodiesterases / Q000037:antagonists & inhibitors*; D002243:Carbolines / Q000627:therapeutic use; D004791:Enzyme Inhibitors / Q000627:therapeutic use; D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D007093:Imidazoles / Q000627:therapeutic use; D008297:Male; D010879:Piperazines / Q000627:therapeutic use; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones; D000068581:Tadalafil; D014227:Triazines; D000069058:Vardenafil Dihydrochloride; D014665:Vasodilator Agents / Q000627:therapeutic use*
chemical_list: D002243:Carbolines; D004791:Enzyme Inhibitors; D007093:Imidazoles; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D014227:Triazines; D014665:Vasodilator Agents; D000069058:Vardenafil Dihydrochloride; D000068581:Tadalafil; D000068677:Sildenafil Citrate; D015106:3',5'-Cyclic-GMP Phosphodiesterases