Skip to main content

Drug Interactions between bexarotene and chloramphenicol

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

Edit list (add/remove drugs)

Interactions between your drugs

Major

chloramphenicol bexarotene

Applies to: chloramphenicol and bexarotene

GENERALLY AVOID: Coadministration of chloramphenicol with other agents that can cause bone marrow depression, aplastic anemia, or agranulocytosis can increase the risk and/or severity of hematologic toxicity. Serious and fatal blood dyscrasias (aplastic anemia, hypoplastic anemia, thrombocytopenia, granulocytopenia, and bone marrow depression) have been reported after short-term and long-term systemic therapy with chloramphenicol. In addition, chloramphenicol is considered a moderate CYP450 3A4 inhibitor and may increase the plasma concentrations and risk of adverse effects of immunosuppressant drugs that are also substrates of this isoenzyme.

MANAGEMENT: Concurrent use of chloramphenicol with other agents that can cause bone marrow depression, aplastic anemia, or agranulocytosis that are also CYP450 3A4 substrates such as ruxolitinib, ibrutinib, idelalisib, olaparib, irinotecan, docetaxel, acalabrutinib, and fostamatinib, should be avoided. Some authorities consider coadministration of chloramphenicol with such medications to be contraindicated. The prescribing information for individual immunosuppressive agents should be consulted for more specific recommendations.

References (4)
  1. (2002) "Product Information. Chloromycetin (chloramphenicol)." Parke-Davis
  2. (2022) "Product Information. Chloromycetin (chloramphenicol)." Pfizer Canada Inc
  3. (2015) "Product Information. Chloromycetin Succinate (chloramphenicol)." Link Medical Products Pty Ltd T/A Link Pharmaceuticals
  4. (2023) "Product Information. Chloramphenicol (chloramphenicol)." Eramol (UK) Ltd

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.

See also

Report options

Loading...
QR code containing a link to this page

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.

Medical Disclaimer