Isoptin SR
Generic Name: verapamil (oral)
Brand Names: Calan, Calan SR, Covera-HS, Isoptin SR, Verelan, Verelan PM What is verapamil?Verapamil is in a group of drugs called calcium channel blockers. It works by relaxing the muscles of your heart and blood vessels. Verapamil is used to treat hypertension (high blood pressure), angina (chest pain), and certain heart rhythm disorders. Verapamil may also be used for other purposes not listed in this medication guide. What is the most important information I should know about verapamil?You should not use this medication if you are allergic to verapamil or if you have certain serious heart conditions such as "sick sinus syndrome" or "AV block" (unless you have a pacemaker), low blood pressure, or if you have recently had a heart attack. Before taking verapamil, tell your doctor if you are allergic to any drugs, or if you have kidney disease, liver disease, congestive heart failure, or a nerve-muscle disorder such as muscular dystrophy. Verapamil can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert. Do not stop taking this medication without first talking to your doctor. If you stop taking verapamil suddenly, your condition may become worse. Verapamil may be only part of a complete program of treatment that also includes diet, exercise, and other medications. Follow your diet, medication, and exercise routines very closely. If you are being treated for high blood pressure, keep using this medication even if you feel fine. High blood pressure often has no symptoms. What should I discuss with my healthcare provider before taking verapamil?You should not use this medication if you are allergic to verapamil, or if you have: certain serious heart conditions, especially "sick sinus syndrome" or "AV block" (unless you have a pacemaker); low blood pressure; or if you have recently had a heart attack.
If you have certain conditions, you may need a dose adjustment or special tests to safely use this medication. Before you take verapamil, tell your doctor if you have: FDA pregnancy category C. It is not known whether verapamil is harmful to an unborn baby. Before taking this medication, tell your doctor if you are pregnant or plan to become pregnant during treatment. Verapamil can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.
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