diltiazem (Cardizem, Cardizem CD, Cardizem LA, Dilacor XR, Tiazac, Cartia XT and several others) (cont.)

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Medical and Pharmacy Editor:
Medical and Pharmacy Editor:

PREGNANCY: There are no adequate studies of diltiazem in pregnant women.

NURSING MOTHERS: Diltiazem is excreted in breast milk. To avoid adverse effects in the infant, diltiazem should not be taken while nursing.

SIDE EFFECTS: Side effects include constipation, nausea, headache, rash, edema (swelling of the legs and feet with fluid), low blood pressure (hypotension), drowsiness, and dizziness. Liver dysfunction and overgrowth of the gums also may occur. Diltiazem can cause mildly abnormal liver tests that usually return to normal with discontinuation of the medication. When diltiazem is given to individuals with heart failure, symptoms of heart failure may worsen because these drugs reduce the ability of the heart to pump blood. Like other drugs for high blood pressure, diltiazem is associated with sexual dysfunction.

Reference: FDA Prescribing Information


Medically Reviewed by a Doctor on 8/7/2014


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