Selected Beta-Blockers/Selected Calcium Channel Blockers
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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