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Drug Interactions between bexarotene and lyme disease vaccine

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

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Interactions between your drugs

Moderate

Lyme disease vaccine bexarotene

Applies to: lyme disease vaccine and bexarotene

GENERALLY AVOID: The administration of Lyme disease vaccine to immunosuppressed patients may be associated with a diminished or suboptimal immunologic response due to antibody inhibition. Such patients may include those who have recently received or are receiving immunosuppressive agents, antilymphocyte globulins, alkylating agents, antimetabolites, radiation, some antirheumatic agents, high dosages of corticosteroids or adrenocorticotropic agents (greater than 10 mg/day to 1 mg/kg/day, whichever is less, of prednisone or equivalent for more than 2 weeks), or long-term topical or inhaled corticosteroids.

MANAGEMENT: The manufacturer suggests considering deferral of vaccination against Lyme disease until 3 months after discontinuation of immunosuppressive therapy. Vaccines may generally be administered to patients receiving corticosteroids as replacement therapy (e.g., for Addison's disease).

References (1)
  1. "Product Information. LYMErix (Lyme disease vaccine)." SmithKline Beecham

Drug and food interactions

Moderate

bexarotene food

Applies to: bexarotene

ADJUST DOSING INTERVAL: Food may enhance the oral bioavailability of bexarotene. In one clinical study, bexarotene peak plasma concentration (Cmax) and systemic exposure (AUC) resulting from a 75 to 300 mg dose were 35% and 48% higher, respectively, when administered after a fat-containing meal relative to a glucose solution. In all clinical trials, patients were instructed to take bexarotene with or immediately following a meal.

Coadministration with inhibitors of CYP450 3A4 such as grapefruit juice may theoretically increase the plasma concentrations of bexarotene. In vitro studies suggest that bexarotene is metabolized by CYP450 3A4. However, concomitant administration with multiple doses of ketoconazole, a potent CYP450 3A4 inhibitor, did not alter bexarotene plasma concentrations, which would imply that bexarotene elimination is not substantially dependent on CYP450 3A4 metabolism in vivo.

MANAGEMENT: Because safety and efficacy data are based upon administration with food, bexarotene should be administered once daily with a meal. Patients may want to avoid consuming large amounts of grapefruit or grapefruit juice.

References (2)
  1. (2001) "Product Information. Targretin (bexarotene)." Ligand Pharmaceuticals
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics."

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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