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Drug Interactions between nimodipine and tovorafenib

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

niMODipine tovorafenib

Applies to: nimodipine and tovorafenib

Consumer information for this interaction is not currently available.

MONITOR: Coadministration with tovorafenib may decrease the plasma concentrations of drugs that are substrates of CYP450 3A4. The proposed mechanism is increased clearance due to tovorafenib-mediated induction of CYP450 3A4 metabolism. According to the manufacturer, tovorafenib is predicted to decrease the peak plasma concentration (Cmax) and systemic exposure (AUC) of sensitive 3A4 substrate midazolam by at least 20%. However, data from formal clinical drug interaction studies are not available.

MANAGEMENT: Caution is recommended with the concomitant use of tovorafenib and CYP450 3A4 substrates. In particular, the manufacturer of tovorafenib advises that concomitant use with sensitive CYP450 3A4 substrates with narrow therapeutic ranges should generally be avoided. If coadministration is required, patients should be monitored carefully for potential loss of therapeutic effects.

Drug and food interactions

Moderate

niMODipine food

Applies to: nimodipine

You should avoid or limit the consumption of grapefruit and grapefruit juice if you are receiving treatment with niMODipine. Grapefruit juice can significantly increase the blood levels and effects of medications like niMODipine. You may be more likely to experience side effects such as headache, low blood pressure, irregular heartbeat, swelling, and fluid retention. Talk to your doctor or pharmacist if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Moderate

niMODipine food

Applies to: nimodipine

NiMODipine and ethanol may have additive effects in lowering your blood pressure. You may experience headache, dizziness, lightheadedness, fainting, and/or changes in pulse or heart rate. These side effects are most likely to be seen at the beginning of treatment, following a dose increase, or when treatment is restarted after an interruption. Let your doctor know if you develop these symptoms and they do not go away after a few days or they become troublesome. Avoid driving or operating hazardous machinery until you know how the medications affect you, and use caution when getting up from a sitting or lying position. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Moderate

niMODipine food

Applies to: nimodipine

Using niMODipine together with multivitamin with minerals can decrease the effects of niMODipine. Talk with your doctor before using niMODipine and multivitamin with minerals together. You may need a dose adjustment or need your blood pressure checked more often if you take both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

See also

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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