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Drug Interactions between Berkley and Jensen Acid Reducer Maximum Strength and etravirine

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

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Interactions between your drugs

Minor

raNITIdine etravirine

Applies to: Berkley and Jensen Acid Reducer Maximum Strength (ranitidine) and etravirine

Coadministration with ranitidine may slightly reduce the plasma concentrations of etravirine. The mechanism of interaction has not been described. In 18 study subjects administered etravirine with ranitidine 150 mg twice a day, etravirine peak plasma concentration (Cmax) and systemic exposure (AUC) decreased by 6% and 14%, respectively. These changes are not considered clinically significant. Etravirine and ranitidine may be coadministered without any dosage adjustments.

References (1)
  1. (2008) "Product Information. Intelence (etravirine)." Ortho Biotech Inc

Drug and food interactions

Moderate

etravirine food

Applies to: etravirine

ADJUST DOSING INTERVAL: Coadministration with food increases the oral bioavailability of etravirine. The mechanism is unknown. Compared to administration following a meal, the systemic exposure (AUC) to etravirine was decreased by about 50% when the drug was administered under fasting conditions. The types of meal studied (ranging from 345 kilocalories containing 17 grams fat to 1160 kilocalories containing 70 grams fat) did not appear to make a difference with respect to impact on etravirine bioavailability.

MANAGEMENT: Etravirine should always be administered following a meal.

References (1)
  1. (2008) "Product Information. Intelence (etravirine)." Ortho Biotech Inc
Minor

raNITIdine food

Applies to: Berkley and Jensen Acid Reducer Maximum Strength (ranitidine)

H2 antagonists may reduce the clearance of nicotine. Cimetidine, 600 mg given twice a day for two days, reduced clearance of an intravenous nicotine dose by 30%. Ranitidine, 300 mg given twice a day for two days, reduced clearance by 10%. The clinical significance of this interaction is not known. Patients should be monitored for increased nicotine effects when using the patches or gum for smoking cessation and dosage adjustments should be made as appropriate.

References (1)
  1. Bendayan R, Sullivan JT, Shaw C, Frecker RC, Sellers EM (1990) "Effect of cimetidine and ranitidine on the hepatic and renal elimination of nicotine in humans." Eur J Clin Pharmacol, 38, p. 165-9

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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