Prescription Drug Index

Diltiazem comes in many different forms of extended release formulations. Your doctor will choose the best one for you. As all of the different formulations of diltiazem are not equivalent it is important that you do not change brands unless under the advisement of your doctor.

Cardizem and Cardizem CD (a controlled release form of diltiazem) are used in the treatment of angina pectoris (chest pain usually caused by lack of oxygen to the heart due to clogged arteries) and chronic stable angina (caused by exertion). Cardizem CD is also used to treat high blood pressure. Another controlled release form Cardizem SR is used only in the treatment of high blood pressure. Cardizem a calcium channel blocker dilates blood vessels and slows the heart to reduce blood pressure and the pain of angina.

Doctors sometimes prescribe Cardizem for loss of circulation in the fingers and toes (Raynaud’s phenomenon) for involuntary movements (tardive dyskinesia) and to prevent heart attack.

Tiazac and Dilacor XR are used in the treatment of high blood pressure and chronic stable angina. They may be taken alone or combined with other blood pressure medications.

ADULTS

Dosage levels are determined by each individual’s needs.

Cardizem

The average daily dosage is between 120 milligrams and 360 milligrams divided into 3 or 4 smaller doses.

Cardizem SR

The recommended starting dosage is 60 to 120 milligrams 2 times a day and can be increased to 240 to 360 milligrams a day.

Cardizem CD

This is a once-a-day form of this drug. For high blood pressure starting doses range from 180 to 240 milligrams with a maximum of 360mg; for angina 120 to 180 milligrams with a maximum of 480mg.

Dilacor XR

This is another once-a-day drug. For high blood pressure doses start at 180 to 240 milligrams and may be increased to as much as 540 milligrams. For angina doses start at 120 milligrams and may be increased to 480 milligrams.

Tiazac

The usual starting dose for high blood pressure is 120 to 240 milligrams once a day. After the drug has taken effect---in about 2 weeks---the dose can range from 120 to 540 milligrams. For angina once-daily doses start at 120 to 180 milligrams and may be increased to 540 milligrams if necessary.

CHILDREN

Safety and effectiveness in children have not been established.

Note:

The content in this section is provided for informational purposes only. This information regarding the following Canadian drugs is not intended to replace or act as a substitute for information or advice provided by your physician. You should always consult a physician before beginning a new medication. Moreover, prescription drugs should only be obtained with a doctor's prescription.

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