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Healtheuniversity > English > Cardiac College > Treat Heart Disease > Heart Medicines > Calcium Channel Blockers

Calcium Channel Blockers


  • ​Controls high blood pressure.
  • Controls irregular heartbeats.
  • Reduces angina (caused by not enough blood supply to the heart).


  • ​Relaxes (opens) blood vessels to improve blood flow to the heart.
  • May slow heart rate and lower the oxygen needs of the heart.

​Potential Side Effects

  • headache
  • edema (ankle swelling)
  • nausea
  • facial flushing
  • dizziness
  • constipation

​Common Names

  • ​Amlodipine (Norvasc®, Lotrel®)
  • Diltiazem (Cardizem®, Tiazac®)
  • Bepridil (Vascor®)
  • Felodipine (Plendil®)
  • Verapamil (Calan®, Isoptin®, Verelan®)
  • Nisoldipine (Sular®)
  • Nifedipine (Adalat®, Procardia®)
  • Nimodipine (Nimotop®)
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