Selected Beta-Blockers/Selected Calcium Channel Blockers Interactions

This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.

Medical warning:

Moderate. These medicines may cause some risk when taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.

How the interaction occurs:

When these two medicines are taken together, the effects of one or both medicines may increase.

What might happen:

An increase in the beneficial and toxic effects of one or both medicines may occur. Additional problems may develop if you have a low heart rate. Using these medicines together may reveal an additional problem with your heart.

What you should do about this interaction:

If you experience a slow heart rate, weakness, fatigue, or dizziness, contact your doctor. The dose of your medicines may need adjusting. Heart problems and high doses of your beta-blocker may increase the chance for harmful effects. Using additional heart medicines may also lead to harmful effects.Your healthcare professionals (e.g. doctor or pharmacist) may already be aware of this drug interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.

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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.