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 an irregular heart beat or flutter.
How should I use this medicine?
This medicine is for injection into a vein. It is given by a health care professional in a hospital or clinic setting.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
What side effects may I notice from receiving this medicine?
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
fast, irregular heartbeat
feeling faint or lightheaded, falls
swelling of the legs or ankles
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
weak or tired
What may interact with this medicine?
Do not take this medicine with any of the following:
red yeast rice
This medicine may also interact with the following medications:
barbiturates, like phenobarbital
local anesthetics or general anesthetics
medicines for heart rhythm problems like amiodarone, digoxin, flecainide, procainamide, quinidine
medicines for blood pressure or heart problems
medicines for seizures like carbamazepine and phenytoin
rifampin, rifabutin or rifapentine
theophylline or aminophylline
What if I miss a dose?
This does not apply.
Where should I keep my medicine?
This drug is given in a hospital or clinic and will not be stored at home.
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 like sick sinus syndrome, ventricular arrhythmias, Wolff-Parkinson-White syndrome, or Lown-Ganong-Levine syndrome
neuromuscular disease such as muscular dystrophy
slow or irregular heartbeat
an unusual or allergic reaction to verapamil, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
What should I watch for while using this medicine?
Your condition will be monitored carefully while you are receiving this medicine.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.