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Drug Interactions between cevimeline and dronedarone

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

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Interactions between your drugs

Moderate

cevimeline dronedarone

Applies to: cevimeline and dronedarone

MONITOR: Coadministration with inhibitors of CYP450 2D6 and/or 3A4 may increase the plasma concentrations of cevimeline, which is metabolized by these isoenzymes.

MANAGEMENT: Dosage adjustments and clinical monitoring may be appropriate whenever a CYP450 2D6 and/or 3A4 inhibitor is added to or withdrawn from therapy. Patients should be advised to notify their physician if they experience excessive adverse cholinergic effects of cevimeline such as nausea, vomiting, diarrhea, sweating, salivation, urinary frequency, visual disturbance, confusion, tremor, palpitations, or irregular heartbeat.

References (1)
  1. (2001) "Product Information. Evoxac (cevimeline)." Daiichi Pharmaceuticals

Drug and food interactions

Major

dronedarone food

Applies to: dronedarone

GENERALLY AVOID: Grapefruit juice may increase the plasma concentrations of dronedarone. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruits. According to the product labeling, administration with grapefruit juice resulted in a 2.5-fold increase in dronedarone peak plasma concentration and a 3-fold increase in systemic exposure. Because dronedarone is associated with concentration-dependent prolongation of the QT interval, increased levels may potentiate the risk of ventricular arrhythmias such as torsade de pointes and sudden death.

ADJUST DOSING INTERVAL: Food increases the oral bioavailability of dronedarone. The mechanism of interaction is unknown. According to the product labeling, the absolute bioavailability of dronedarone increases from about 4% when administered in the fasted state to approximately 15% when administered with a high-fat meal.

MANAGEMENT: Patients treated with dronedarone should avoid consumption of grapefruit, grapefruit juice, and any supplement containing grapefruit extract. Dronedarone should be taken twice daily with the morning and evening meals.

References (1)
  1. (2009) "Product Information. Multaq (dronedarone)." sanofi-aventis

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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