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Drugs Which Cause Constipation

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(In alphabetical order, not an exhaustive list):

  • Antacids containing calcium carbonate or aluminium hydroxide
  • Amiodarone
  • Anticholinergics (e.g. tricyclic antidepressants, antihistamines, phenothiazines)
  • Antidiarrhoeal agents
  • Antiparkinsonism agents
  • Calcium channel blockers (verapamil, nifedipine, amlodipine, diltiazem)
  • Clonidine
  • Cough suppressants
  • Disopyramide (Rythmodan) for heart rhythm abnormalities
  • Diuretics (water tablets)
  • Iron preparations
  • Opioid analgesics (narcotics such as morphine and related drugs)