Verapamil



Calan®; Calan® SR; Covera-HS®; Isoptin® SR; Verelan®; Verelan® PM







Verapamil

(ver AP a mil)

U.S. Brand Names
Calan®; Calan® SR; Covera-HS®; Isoptin® SR; Verelan®; Verelan® PM
Canadian Brand Names
Alti-Verapamil; Apo-Verap®; Calan®; Chronovera®; Covera®; Covera-HS®; Gen-Verapamil; Gen-Verapamil SR; Isoptin® SR; Novo-Veramil SR; Nu-Verap; Riva-Verapamil SR; Verapamil Hydrochloride Injection, USP
Mexican Brand Names
Cronovera®; Dilacoran®
Pharmacologic Category
Antiarrhythmic Agent, Class IV; Calcium Channel Blocker
Reasons not to take this medicine
  • If you have an allergy to verapamil or any other part of this medicine.
  • Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other symptoms involved.
  • If you have any of the following conditions: Low blood pressure, Lown-Ganoang-Levine syndrome, severely weakened heart, slow heartbeat without a working pacemaker, or Wolff-Parkinson-White syndrome.
What is this medicine used for?
  • This medicine is used to prevent migraine headaches.
  • This medicine is used to treat chest pain or pressure.
  • This medicine is used to treat a fast heartbeat.
  • This medicine is used to treat high blood pressure.
How does it work?
  • Verapamil relaxes blood vessels, lowering blood pressure.
How is it best taken?
  • Take liquid (suspension) or tablets with or without food. Take with food if it causes an upset stomach.
  • Take long-acting products with food.
  • Long-acting products: Swallow whole. Do not chew, break, or crush.
  • A liquid (suspension) is available if you cannot swallow pills. Shake well before use.
  • Those who have feeding tubes can also use the liquid. Flush the feeding tube before and after medicine is given.
  • Follow diet plan and exercise program as recommended by healthcare provider.
What do I do if I miss a dose? (does not apply to patients in the hospital)
  • Take a missed dose as soon as possible.
  • If it is almost time for the next dose, skip the missed dose and return to your regular schedule.
  • Do not take a double dose or extra doses.
  • Do not change dose or stop medicine. Talk with healthcare provider.
What are the precautions when taking this medicine?
  • Wear disease medical alert identification.
  • If you have a weakened heart, talk with healthcare provider.
  • Check medicines with healthcare provider. This medicine may not mix well with other medicines.
  • If you are taking this medicine and have high blood pressure, talk with healthcare provider before using over-the-counter products that may increase blood pressure. These include cough or cold remedies, diet pills, stimulants, ibuprofen or like products, and certain natural products or supplements.
  • Avoid grapefruit and grapefruit juice.
  • Limit alcohol intake (includes wine, beer, and liquor).
  • Tell healthcare provider if you are pregnant or plan on getting pregnant.
  • Tell healthcare provider if you are breast-feeding.
What are some possible side effects of this medicine?
  • Feeling dizzy. Rise slowly over several minutes from sitting or lying position. Be careful climbing.
  • Constipation. More liquids, regular exercise, or a fiber-containing diet may help. Talk with healthcare provider about a stool softener or laxative.
What should I monitor?
  • Change in condition being treated. Is it better, worse, or about the same?
  • Check blood pressure and heart rate regularly.
  • Take good care of your teeth. See a dentist regularly.
  • Follow up with healthcare provider.
Reasons to call healthcare provider immediately
  • If you suspect an overdose, call your local poison control center immediately or dial 911.
  • Signs of a life-threatening reaction. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; fits; or swelling of face, lips, tongue, or throat.
  • Chest pain or pressure or fast heartbeat.
  • Severe dizziness or passing out.
  • Difficulty breathing.
  • Severe headache.
  • Severe constipation.
  • Any rash.
  • No improvement in condition or feeling worse.
How should I store this medicine?
  • Store at room temperature.
  • Protect capsules and tablets from moisture. Do not store in a bathroom or kitchen.
  • Store liquid (suspension) in a refrigerator. Throw away any unused portion after 1 month.
General statements
  • If you have a life-threatening allergy, wear allergy identification at all times.
  • Do not share your medicine with others and do not take anyone else's medicine.
  • Keep all medicine out of the reach of children and pets.
  • Keep a list of all your medicines (prescription, natural products, supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, nurse practitioner, pharmacist, physician assistant).
  • Talk with healthcare provider before starting any new medicine, including over-the-counter, natural products, or vitamins.
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