Nifedipine overdose

Am J Med. 1986 Aug;81(2):344-6. doi: 10.1016/0002-9343(86)90276-7.


A 59-year-old man ingested 900 mg of nifedipine. Profound hypotension, sinus and atrioventricular node dysfunction, and hyperglycemia resulted. The patient's condition responded favorably to aggressive treatment with intravenous fluids, calcium, and dopamine. Similar effects and response to therapy have been reported in 17 cases of verapamil overdose and are briefly summarized. The effects of nifedipine overdose are discussed, and preliminary recommendations about its management are offered. With increasing use of nifedipine and other calcium channel blockers, more incidents of overdose can be expected.

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Atropine / therapeutic use
  • Bradycardia / chemically induced
  • Calcium Chloride / therapeutic use
  • Diuretics / therapeutic use
  • Electrocardiography
  • Gravity Suits
  • Humans
  • Hypotension / chemically induced
  • Male
  • Middle Aged
  • Nifedipine / poisoning*
  • Oxygen / therapeutic use
  • Sodium Chloride / therapeutic use


  • Diuretics
  • Sodium Chloride
  • Atropine
  • Nifedipine
  • Calcium Chloride
  • Oxygen