Nifedipine in the treatment of achalasia.
D004931:Esophageal Achalasia / Q000188:drug therapy*; D004947:Esophagus / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D009130:Muscle, Smooth / Q000187:drug effects; D009543:Nifedipine / Q000627:therapeutic use*; D011725:Pyridines / Q000627:therapeutic use*
D011725:Pyridines; D009543:Nifedipine