Diltiazem
Pronounced
"dill-TIE-uh-zem"
Uses
Diltiazem 12-hour sustained-action capsules are used to treat high blood pressure (hypertension). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Diltiazem is called a calcium channel blocker. It works by relaxing blood vessels in the body and heart so blood can flow more easily. This effect lowers blood pressure. Diltiazem may also lower your heart rate.
Other Uses
This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional.
This drug may also be used to reduce the risk of chest pain (angina). When used regularly, diltiazem can decrease the number and severity of episodes of chest pain from angina. It may also be used to control your heart rate if you have a fast/irregular heartbeat (such as atrial fibrillation).
How to Use This Medication
Take this medication by mouth with or without food as directed by your doctor, usually twice daily. Swallow the capsules whole. Do not crush or chew the capsules. Doing so can release all of the drug at once and may increase your risk of side effects.
Your doctor may gradually increase your dose. Follow your doctor's instructions carefully. The dosage is based on your medical condition, response to treatment, and other medications you may be taking. Be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
Use this medication regularly to get the most benefit from it. To help you remember, use it at the same times each day. Keep taking this medication even if you feel well. Most people with high blood pressure do not feel sick.
If this medication is used for angina, this medication must be taken regularly to be effective. It should not be used to treat angina when it occurs. Use other medications (such as nitroglycerin placed under the tongue) to relieve an angina attack as directed by your doctor. Consult your doctor or pharmacist for details.
It may take up to 2 weeks before you get the full benefit of this drug. Tell your doctor if your condition does not get better or if it gets worse (your blood pressure readings remain high or increase).
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