Cardizem

• Storage instructions...
  Cardizem should be stored at room temperature; protect from moisture.

What side effects may occur?

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Cardizem.

• Side effects may include:
  Abnormally slow heartbeat (more common with Cardizem SR, Cardizem LA, and Cardizem CD), dizziness, fatigue, fluid retention, flushing (more common with Cardizem SR, Cardizem LA, and Cardizem CD), headache, nausea, rash, weakness

Why should Cardizem not be prescribed?

If you suffer from "sick sinus" syndrome or second- or third-degree heart block (various types of irregular heartbeat), you should not take diltiazem unless you have a ventricular pacemaker. Also avoid diltiazem if you've just suffered a heart attack or have lung congestion.

Do not take diltiazem if you have low blood pressure or an allergy to the drug.

Special warnings about Cardizem

If you have congestive heart failure or suffer from kidney or liver disease, use Cardizem with caution.

This medication may cause your heart rate to become too slow. You should check your pulse regularly.

Possible food and drug interactions when taking Cardizem

If Cardizem is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Cardizem with the following:

• Beta-blockers (heart and blood pressure drugs such as atenolol and propranolol hydrochloride)
• Carbamazepine
• Cimetidine
• Cyclosporine
• Digoxin
• Lovastatin
• Midazolam
• Rifampin
• Triazolam

Special information if you are pregnant or breastfeeding

The effects of Cardizem during pregnancy have not been adequately studied. If you are pregnant or plan to become pregnant, inform your doctor immediately. Cardizem appears in breast milk and could affect a nursing infant. If this medication is essential to your health, your doctor may advise you to discontinue breastfeeding until your treatment with this medication is finished.