title: Nifedipine and torsades de pointes.
mesh_terms: D006801:Humans; D009543:Nifedipine / Q000009:adverse effects*; D011725:Pyridines / Q000009:adverse effects*; D013610:Tachycardia / Q000139:chemically induced*
chemical_list: D011725:Pyridines; D009543:Nifedipine