title: Move over, Viagra.
authors.forename: Sanjay
authors.initials: S
authors.lastname: Gupta
mesh_terms: D004465:Economic Competition; D007172:Erectile Dysfunction / Q000188:drug therapy; D006801:Humans; D008297:Male; D010879:Piperazines / Q000009:adverse effects / Q000191:economics*; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones; D014481:United States
chemical_list: D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate