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Targretin and Alcohol/Food Interactions

There are 2 alcohol/food/lifestyle interactions with Targretin (bexarotene).

Moderate

Bexarotene Food

Moderate Food Interaction

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."

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Moderate

Bexarotene High Cholesterol (Hyperlipoproteinemia, Hypertriglyceridemia, Sitosterolemia)

Moderate Potential Hazard, Moderate plausibility

bexarotene - hyperlipidemia

The use of bexarotene may cause elevations in lipids. It is recommended to monitor lipid levels closely and to obtain a fasting blood lipid reading at baseline and weekly until lipid response to the drug is established. Exercise caution when using this agent in patients with hyperlipidemia.

References (1)
  1. (2001) "Product Information. Targretin (bexarotene)." Ligand Pharmaceuticals

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Targretin drug interactions

There are 644 drug interactions with Targretin (bexarotene).

Targretin disease interactions

There are 7 disease interactions with Targretin (bexarotene) which include:

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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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