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Drug Interactions between abrocitinib and voriconazole

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

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Interactions between your drugs

Minor

voriconazole abrocitinib

Applies to: voriconazole and abrocitinib

Coadministration with inhibitors of CYP450 2C19 may increase the plasma concentrations of abrocitinib, which is primarily metabolized by CYP450 2C19 (approximately 53%) and 2C9 (30%) and to a lesser extent by CYP450 3A4 (11%) and 2B6 (6%) based on in vitro data. When a 100 mg dose of abrocitinib was coadministered with fluvoxamine, a potent CYP450 2C19 inhibitor and a weak to moderate CYP450 2C9 and 3A4 inhibitor, or fluconazole, a potent CYP450 2C19 inhibitor and a moderate CYP450 2C9 and 3A inhibitor, the sum systemic exposure (AUC) of unbound abrocitinib plus its two active mono-hydroxylated metabolites, M1 (3-hydroxypropyl) and M2 (2-hydroxypropyl), increased by 91% and 155%, respectively. No data are available for other, less potent CYP450 2C19 inhibitors; however, clinically significant interactions are not expected.

References (2)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. (2022) "Product Information. Cibinqo (abrocitinib)." Pfizer U.S. Pharmaceuticals Group

Drug and food interactions

Moderate

voriconazole food

Applies to: voriconazole

ADJUST DOSING INTERVAL: Food reduces the oral absorption and bioavailability of voriconazole. According to the product labeling, administration of multiple doses of voriconazole with high-fat meals decreased the mean peak plasma concentration (Cmax) and area under the concentration-time curve (AUC) by 34% and 24%, respectively, when the drug is administered as a tablet, and by 58% and 37%, respectively, when administered as the oral suspension.

MANAGEMENT: To ensure maximal oral absorption, voriconazole tablets and oral suspension should be taken at least one hour before or after a meal.

References (2)
  1. (2002) "Product Information. VFEND (voriconazole)." Pfizer U.S. Pharmaceuticals
  2. Wohlt PD, Zheng L, Gunderson S, Balzar SA, Johnson BD, Fish JT (2009) "Recommendations for the use of medications with continuous enteral nutrition." Am J Health Syst Pharm, 66, p. 1438-67
Moderate

abrocitinib food

Applies to: abrocitinib

MONITOR: Smoking during treatment with abrocitinib may increase the risk of major adverse cardiovascular events (MACE) and the risk of developing malignancies. During abrocitinib clinical studies, current or past smokers had an additional increased risk of overall malignancies. Also, abrocitinib may increase patients' risk of MACE, including myocardial infarction, stroke, and cardiovascular death.

Administration of abrocitinib with high-fat, high-calorie food increased abrocitinib peak plasma concentration (Cmax) and systemic exposure (AUC) by 29% and 26%, respectively, and prolonged the time to reach Cmax by 2 hours. These changes are not considered clinically relevant.

MANAGEMENT: Caution is advised if abrocitinib is prescribed to current or past smokers. Patients should be informed about the symptoms of serious cardiovascular events and the steps to take if they occur. The manufacturer recommends discontinuing abrocitinib in patients that have experienced a myocardial infarction or stroke. Abrocitinib may be taken with or without food.

References (1)
  1. (2022) "Product Information. Cibinqo (abrocitinib)." Pfizer U.S. Pharmaceuticals Group

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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