Viagra shows potential as a cardiopulmonary drug. Vasodilatory effects improve heart and lung function by increasing circulation and relaxing blood vessels.
D002303:Cardiac Output, Low / Q000188:drug therapy*; D006321:Heart / Q000187:drug effects; D006801:Humans; D006976:Hypertension, Pulmonary / Q000188:drug therapy*; D010726:Phosphodiesterase Inhibitors / Q000627:therapeutic use*; D010879:Piperazines / Q000627:therapeutic use*; D011651:Pulmonary Artery / Q000187:drug effects; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones; D014665:Vasodilator Agents / Q000627:therapeutic use*
D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D014665:Vasodilator Agents; D000068677:Sildenafil Citrate