title: Tadalafil (Cialis) and vardenafil (Levitra) recently approved drugs for erectile dysfunction.
authors.affiliation: Bay Pines VA Medical Center, Bay Pines, FL, USA.
authors.forename: Kaye K
authors.initials: KK
authors.lastname: Gaines
mesh_terms: D002243:Carbolines / Q000009:adverse effects / Q000627:therapeutic use*; D007172:Erectile Dysfunction / Q000188:drug therapy* / Q000451:nursing; D006801:Humans; D007093:Imidazoles / Q000009:adverse effects / Q000627:therapeutic use*; D008297:Male; D010726:Phosphodiesterase Inhibitors / Q000009:adverse effects / Q000627:therapeutic use*; D010879:Piperazines / Q000009:adverse effects / Q000627:therapeutic use*; D013450:Sulfones; D000068581:Tadalafil; D014227:Triazines; D000069058:Vardenafil Dihydrochloride
chemical_list: D002243:Carbolines; D007093:Imidazoles; D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D013450:Sulfones; D014227:Triazines; D000069058:Vardenafil Dihydrochloride; D000068581:Tadalafil