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Drug Interactions between Adrenocot LA and Hetlioz

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

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Interactions between your drugs

Moderate

dexAMETHasone tasimelteon

Applies to: Adrenocot LA (dexamethasone) and Hetlioz (tasimelteon)

MONITOR: Coadministration with inducers of CYP450 1A2 and/or 3A4 may decrease the plasma concentrations of tasimelteon, which is primarily metabolized by these isoenzymes. When tasimelteon was administered after 11 days of treatment with the potent CYP450 inducer rifampin 600 mg/day, tasimelteon systemic exposure (AUC) decreased by approximately 90% compared to tasimelteon administered alone. No data are available for use with other, less potent inducers.

MANAGEMENT: The potential for diminished therapeutic effects of tasimelteon should be considered during coadministration with inducers of CYP450 1A2 and/or 3A4. Alternative treatments may be required if an interaction is suspected.

References

  1. "Product Information. Hetlioz (tasimelteon)." Vanda Pharmaceuticals Inc (2014):

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Drug and food interactions

Moderate

tasimelteon food

Applies to: Hetlioz (tasimelteon)

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

ADJUST DOSING INTERVAL: Food may delay the absorption and onset of action of tasimelteon. According to the product labeling, administration of tasimelteon with a high-fat meal decreased peak plasma concentration (Cmax) by 44% and delayed the median time to reach Cmax by approximately 1.75 hours compared to administration in the fasted state.

MONITOR: Smoking induces CYP450 1A2 and may reduce the plasma concentrations of tasimelteon, which is metabolized by the isoenzyme. According to the product labeling, tasimelteon systemic exposure was approximately 40% lower in smokers than in nonsmokers.

MANAGEMENT: Patients receiving tasimelteon should be advised to avoid or limit consumption of alcohol. Tasimelteon should be taken without food. Patients who smoke may have a reduced therapeutic response to tasimelteon.

References

  1. "Product Information. Hetlioz (tasimelteon)." Vanda Pharmaceuticals 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.

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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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