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Verapamil (By mouth)

Verapamil (ver-AP-a-mil)

There may be other brand names for this medicine.

This medicine is not right for everyone. Do not use it if you had an allergic reaction to verapamil.

Take your medicine as directed. Your dose may need to be changed several times to find what works best for you.
It is best to take this medicine with food or milk.
Swallow the extended-release tablet or extended-release capsule whole. Do not crush, break, or chew it.
If you take the Verelan® or Verelan® PM extended-release capsule, you may open it and pour the medicine into a small amount of applesauce. Stir this mixture well and swallow it without chewing.
Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

Some medicines can affect how verapamil works. Tell your doctor if you are using any of the following:
- Aspirin, carbamazepine, cimetidine, clonidine, cyclosporine, digitalis, digoxin, erythromycin, everolimus, ivabradine, lithium, phenobarbital, rifampin, ritonavir, sirolimus, telithromycin, temsirolimus, theophylline, vecuronium
- Blood pressure medicine (including atenolol, metoprolol, prazosin, timolol)
- Cancer medicines (including cisplatin, cyclophosphamide, doxorubicin, paclitaxel, prednisone, procarbazine, vindesine)
- Diuretic (water pill)
- Medicine for heart rhythm problem (including disopyramide, flecainide, quinidine)
- Statin medicine
Do not drink alcohol while you are using this medicine.
Do not eat grapefruit or drink grapefruit juice while you are using this medicine.

Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, nerve disease, or muscle disease. Tell your doctor about all heart problems that you have.
This medicine may cause the following problems:
- Heart failure
- Low blood pressure
- Liver problems
- Changes in heart rhythm
This medicine may make you dizzy or lightheaded. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.
Tell any doctor or dentist who treats you that you use this medicine.
Your blood pressure may go up if you stop using this medicine. High blood pressure usually has no symptoms. Even if you feel well, do not stop using this medicine without asking your doctor.
Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
Keep all medicine out of the reach of children. Never share your medicine with anyone.

Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
Chest pain, trouble breathing
Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes
Fast, slow, uneven, or pounding heartbeat
Lightheadedness, dizziness, fainting
Rapid weight gain, swelling in your legs, feet, or ankles
Unusual tiredness or weakness

Last Updated: 4/23/2024