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Drug Interactions between Cinvanti and suvorexant

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

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Interactions between your drugs

Major

aprepitant suvorexant

Applies to: Cinvanti (aprepitant) and suvorexant

ADJUST DOSE: Coadministration with moderate inhibitors of CYP450 3A4 may significantly increase the plasma concentrations of suvorexant, which is primarily metabolized by the isoenzyme. According to the product labeling, suvorexant peak plasma concentration (Cmax) and systemic exposure (AUC) increased by approximately 1.2- and 2.1-fold, respectively, when coadministered with the moderate CYP450 3A4 inhibitor diltiazem (240 mg).

MANAGEMENT: The recommended dose of suvorexant is 5 mg when used with moderate CYP450 3A4 inhibitors, and generally should not exceed 10 mg.

References

  1. "Product Information. Belsomra (suvorexant)." Merck & Co., Inc (2014):

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Drug and food interactions

Moderate

suvorexant food

Applies to: suvorexant

GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of suvorexant. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills. In addition, alcohol may increase the risk of cognitive and complex behavioral changes associated with the use of hypnotics including suvorexant, such as amnesia, anxiety, hallucinations, sleep-driving, and other neuropsychiatric symptoms.

ADJUST DOSE: Grapefruit juice may significantly increase the plasma concentrations of suvorexant. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit.

ADJUST DOSING INTERVAL: Administration with or soon after a meal may delay the gastrointestinal absorption of suvorexant. According to the product labeling, administration of suvorexant with a high-fat meal resulted in no meaningful change in peak plasma concentration (Cmax) or systemic exposure (AUC), but a delay in Tmax of approximately 1.5 hours.

MANAGEMENT: Concomitant use of suvorexant with alcohol should be avoided. Patients should be advised not to use suvorexant if they had alcohol that evening or before bed. Grapefruit juice should preferably be avoided; otherwise, the recommended dose of suvorexant is 5 mg when used with grapefruit juice and should not exceed 10 mg. Suvorexant may be taken with or without food; however, for faster sleep onset, suvorexant should not be administered with or soon after a meal.

References

  1. "Product Information. Belsomra (suvorexant)." Merck & Co., Inc (2014):

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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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