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Drug Interactions between AccessPak for HIV PEP Expanded with Viracept and gadobenate dimeglumine

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

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Interactions between your drugs

Moderate

nelfinavir gadobenate dimeglumine

Applies to: AccessPak for HIV PEP Expanded with Viracept (emtricitabine / nelfinavir / tenofovir disoproxil) and gadobenate dimeglumine

MONITOR: Gadobenate dimeglumine may compete with other substrates of the canalicular multispecific organic anion transporter, also known as cMOAT or MRP2, which is an endogenous transporter protein that works in coordination with the conjugation process to facilitate drug excretion. In solid tumor cells, overexpression of MRP2 confers resistance to a wide variety of anticancer chemotherapeutic agents. Substrates of MRP2 include anthracyclines, protease inhibitors, taxanes, vinca alkaloids, cisplatin, etoposide, methotrexate, and tamoxifen. Theoretically, competition for MRP2 transport may interfere with the clearance of these drugs and/or gadobenate dimeglumine. In patients with tumor cell lines that express MRP2, the interaction may also result in enhanced pharmacologic response to some chemotherapeutic agents.

MANAGEMENT: Caution is advised during concomitant use of gadobenate dimeglumine and other substrates of MRP2. Patients should be monitored for potentially increased pharmacologic effects of gadobenate dimeglumine as well as the coadministered drug(s).

References (2)
  1. Huisman MT, Smit JW, Crommentuyn KM, et al. (2002) "Multidrug resistance protein 2 (MRP2) transports HIV protease inhibitors, and transport can be enhanced by other drugs." AIDS, 16, p. 2295-2301
  2. (2005) "Product Information. Multihance (gadobenate dimeglumine)." Bracco Diagnostics Inc

Drug and food interactions

Minor

tenofovir food

Applies to: AccessPak for HIV PEP Expanded with Viracept (emtricitabine / nelfinavir / tenofovir disoproxil)

Food enhances the oral absorption and bioavailability of tenofovir, the active entity of tenofovir disoproxil fumarate. According to the product labeling, administration of the drug following a high-fat meal increased the mean peak plasma concentration (Cmax) and area under the concentration-time curve (AUC) of tenofovir by approximately 14% and 40%, respectively, compared to administration in the fasting state. However, administration with a light meal did not significantly affect the pharmacokinetics of tenofovir compared to administration in the fasting state. Food delays the time to reach tenofovir Cmax by approximately 1 hour. Tenofovir disoproxil fumarate may be administered without regard to meals.

References (1)
  1. (2001) "Product Information. Viread (tenofovir)." 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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