Muscle cramps during treatment with nifedipine.
D000368:Aged; D006801:Humans; D008297:Male; D008875:Middle Aged; D009120:Muscle Cramp / Q000139:chemically induced*; D009543:Nifedipine / Q000009:adverse effects*; D011725:Pyridines / Q000009:adverse effects*
D011725:Pyridines; D009543:Nifedipine