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Drug Interactions between pexidartinib and vortioxetine

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

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Interactions between your drugs

Moderate

vortioxetine pexidartinib

Applies to: vortioxetine and pexidartinib

ADJUST DOSE: Coadministration with potent inducers of CYP450 isoenzymes may significantly decrease the plasma concentrations of vortioxetine, which is primarily metabolized by CYP450 2D6. According to the product labeling, administration of vortioxetine with the potent CYP450 inducer rifampin resulted in an approximately 50% decrease in vortioxetine peak plasma concentration (Cmax) and 75% decrease in systemic exposure (AUC) compared to administration of vortioxetine alone.

MANAGEMENT: An increase in the dosage of vortioxetine should be considered when used in combination with potent CYP450 inducers (e.g., carbamazepine, phenobarbital, phenytoin, rifamycins) for greater than 14 days, up to a maximum of three times the original dosage depending on clinical response. Following discontinuation of the potent CYP450 inducer, vortioxetine dosage should be returned to the original level within 14 days. Other known CYP450 inducers include aminoglutethimide, barbiturates, bexarotene, bosentan, enzalutamide, efavirenz, etravirine, nevirapine, somatrem, somatropin, suzetrigine, and various other anticonvulsants, although the extent to which they interact with vortioxetine is unknown. If concomitant use is required, close monitoring for signs of reduced therapeutic efficacy is advised, and the vortioxetine dosage adjusted as necessary.

References (1)
  1. (2013) "Product Information. Brintellix (vortioxetine)." Takeda Pharmaceuticals America

Drug and food interactions

Major

pexidartinib food

Applies to: pexidartinib

ADJUST DOSING INTERVAL: The presence of food may increase the absorption and toxicity of pexidartinib. Administration of pexidartinib with a high-fat meal increased peak plasma concentration (Cmax) and systemic exposure (AUC) by 100% and prolonged the time to reach peak plasma concentration (Tmax) by 2.5 hours.

GENERALLY AVOID: Grapefruit or grapefruit juice may increase the plasma concentration and risk of adverse effects of pexidartinib, including potentially fatal hepatotoxicity. The mechanism is inhibition of CYP450 3A4-mediated metabolism of pexidartinib by certain compounds present in grapefruits. Concomitant administration of itraconazole, a strong CYP450 3A4 inhibitor, increased pexidartinib peak plasma concentration (Cmax) and systemic exposure (AUC) by 48% and 70%, respectively.

MANAGEMENT: Pexidartinib should be administered on an empty stomach, at least one hour before or two hours after a meal or snack. Consumption of grapefruit or grapefruit juice should generally be avoided during pexidartinib therapy. If concomitant use is unavoidable, the dose of pexidartinib should be reduced according to the manufacturer's recommendations. If concomitant use of grapefruit or grapefruit juice is discontinued, the dose of pexidartinib may be increased (after 3 plasma half-lives of a strong CYP450 3A4 inhibitor) to the dose that was used prior to consumption of grapefruit or grapefruit juice.

References (1)
  1. (2019) "Product Information. Turalio (pexidartinib)." Daiichi Sankyo, Inc.
Moderate

vortioxetine food

Applies to: vortioxetine

GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of CNS-active agents. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills.

MANAGEMENT: Patients receiving CNS-active agents should be warned of this interaction and advised to avoid or limit consumption of alcohol. Ambulatory patients should be counseled to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how these agents affect them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities.

References (4)
  1. Warrington SJ, Ankier SI, Turner P (1986) "Evaluation of possible interactions between ethanol and trazodone or amitriptyline." Neuropsychobiology, 15, p. 31-7
  2. Gilman AG, eds., Nies AS, Rall TW, Taylor P (1990) "Goodman and Gilman's the Pharmacological Basis of Therapeutics." New York, NY: Pergamon Press Inc.
  3. (2012) "Product Information. Fycompa (perampanel)." Eisai Inc
  4. (2015) "Product Information. Rexulti (brexpiprazole)." Otsuka American Pharmaceuticals Inc

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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