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  • Basic Info
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Generic: verapamil
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It affects the amount of calcium found in your heart and muscle cells
               



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What is this medicine?

VERAPAMIL (ver AP a mil) is a calcium- channel blocker. It affects the amount of calcium found in your heart and muscle cells. This relaxes your blood vessels, which can reduce the amount of work the heart has to do. This medicine is used to treat chest pain caused by angina, high blood pressure, and controls heart rate in certain conditions.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • heart or blood vessel disease
  • heart rhythm disturbances such as sick sinus syndrome, ventricular arrhythmias, Wolff- Parkinson- White syndrome, or Lown- Ganong- Levine syndrome
  • liver or kidney disease
  • low blood pressure
  • an unusual or allergic reaction to verapamil, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast- feeding

How should I use this medicine?

Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. This medicine can be taken with or without food. Take your doses at regular intervals. Do not take your medicine more often than directed.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medicine?

Do not take this medicine with any of the following:
  • cisapride
  • disopyramide
  • dofetilide
  • grapefruit juice
  • hawthorn
  • pimozide
  • red yeast rice

This medicine may also interact with the following medications:

  • barbiturates such as phenobarbital
  • cimetidine
  • cyclosporine
  • lithium
  • local anesthetics or general anesthetics
  • medicines for heart rhythm problems like amiodarone, digoxin, flecainide, procainamide, quinidine
  • medicines for high blood pressure or heart problems
  • medicines for seizures like carbamazepine and phenytoin
  • rifampin, rifabutin or rifapentine
  • theophylline or aminophylline

               
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