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Drug Interactions between darunavir and ticagrelor

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

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Interactions between your drugs

Moderate

darunavir ticagrelor

Applies to: darunavir and ticagrelor

MONITOR: Coadministration with moderate inhibitors of CYP450 3A4 may increase the plasma concentrations of ticagrelor, which is primarily metabolized by the isoenzyme. In healthy volunteers, administration of ticagrelor in combination with the moderate CYP450 3A4 inhibitor diltiazem resulted in increased ticagrelor peak plasma concentration (Cmax) and systemic exposure (AUC) by 69% and 174%, respectively. For the active metabolite, the Cmax was decreased by 38% and the AUC was unchanged. Ticagrelor had no effect on the plasma levels of diltiazem.

MANAGEMENT: Although administration with moderate CYP450 3A4 inhibitors is thought to be generally safe, it may be advisable to monitor pharmacologic response to ticagrelor more closely following the addition and withdrawal of these agents. Discontinuation of the concomitant medication may be required if an interaction is suspected.

References (2)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. (2011) "Product Information. Brilinta (ticagrelor)." Astra-Zeneca Pharmaceuticals

Drug and food interactions

Moderate

darunavir food

Applies to: darunavir

ADJUST DOSING INTERVAL: Food enhances the absorption and oral bioavailability of darunavir administered in combination with low-dose ritonavir. The mechanism is unknown. When administered with food, the peak plasma concentration (Cmax) and area under the plasma concentration-time curve (AUC) of darunavir were approximately 30% higher than when administered in the fasting state. Darunavir exposure was similar for the range of meals studied. The total caloric content of the various meals evaluated ranged from 240 Kcal (12 grams fat) to 928 Kcal (56 grams fat).

MANAGEMENT: To ensure maximal oral absorption, darunavir coadministered with ritonavir should be taken with food. The type of food is not important.

References (1)
  1. (2006) "Product Information. Prezista (darunavir)." Ortho Biotech Inc

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.

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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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