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Drug Interactions between didanosine and elvitegravir

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

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Interactions between your drugs

Moderate

didanosine elvitegravir

Applies to: didanosine and elvitegravir

ADJUST DOSING INTERVAL: Since elvitegravir must be taken with food, simultaneous administration with didanosine may interfere with the gastrointestinal absorption of didanosine, which should be taken on an empty stomach.

MANAGEMENT: When prescribed in combination with elvitegravir, didanosine should be administered on an empty stomach one hour before or two hours after elvitegravir, which is to be taken with food. Clinical monitoring for altered therapeutic efficacy is advisable.

References (2)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. Cerner Multum, Inc. "Australian Product Information."

Drug and food interactions

Moderate

didanosine food

Applies to: didanosine

ADJUST DOSING INTERVAL: Didanosine bioavailability is decreased when administered with food. Loss of efficacy may result.

MANAGEMENT: Didanosine should be administered in the fasting state, at least 30 minutes before or more than 2 hours after eating.

References (1)
  1. (2002) "Product Information. Videx (didanosine)." Bristol-Myers Squibb
Moderate

elvitegravir food

Applies to: elvitegravir

ADJUST DOSING INTERVAL: Food enhances the oral bioavailabilities of both elvitegravir and tenofovir. When a single dose of cobicistat/elvitegravir/emtricitabine/tenofovir (trade name Stribild) was given with a light meal (approximately 373 kcal; 20% fat), mean elvitegravir and tenofovir systemic exposures (AUCs) increased by 34% and 24%, respectively, relative to fasting conditions. When administered with a high-fat meal (approximately 800 kcal; 50% fat), the mean AUC of elvitegravir and tenofovir increased by 87% and 23%, respectively, relative to fasting conditions. The alterations in mean AUCs of cobicistat and emtricitabine were not clinically significant with either the light or high-fat meal.

MANAGEMENT: Cobicistat/elvitegravir/emtricitabine/tenofovir as a fixed-dose preparation should be administered once daily with food. Elvitegravir as a single-ingredient preparation should also be administered once daily with food.

References (2)
  1. (2012) "Product Information. Stribild (cobicistat/elvitegravir/emtricitabine/tenofov)." Gilead Sciences
  2. (2014) "Product Information. Vitekta (elvitegravir)." Gilead Sciences

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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