general side effects of calcium channel blockers

Last reviewed 01/2018

  • flushing
  • headache
  • ankle swelling
  • verapamil may cause gastrointestinal side-effects, particularly constipation.

Flushing, headache, palpitations and ankle oedema are due to vasodilation, particularly with dihydropyridines (e.g. nifedipine, amlodipine).