title: Ambrisentan (Letairis) and tadalafil (Adcirca) for pulmonary arterial hypertension.
mesh_terms: D000959:Antihypertensive Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D017277:Drug Approval; D004359:Drug Therapy, Combination; D006801:Humans; D006976:Hypertension, Pulmonary / Q000188:drug therapy*; D010666:Phenylpropionates / Q000008:administration & dosage / Q000627:therapeutic use*; D011724:Pyridazines / Q000008:administration & dosage / Q000627:therapeutic use*; D000068581:Tadalafil / Q000008:administration & dosage / Q000627:therapeutic use*; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D000959:Antihypertensive Agents; D010666:Phenylpropionates; D011724:Pyridazines; D000068581:Tadalafil; C467894:ambrisentan