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Drug Interactions between avatrombopag and rifabutin

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

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Interactions between your drugs

Moderate

rifabutin avatrombopag

Applies to: rifabutin and avatrombopag

MONITOR: Concomitant use of avatrombopag with strong CYP450 3A4/5 or CYP450 2C9 inducers may decrease the systemic exposure (AUC) of avatrombopag which may lead to reduced efficacy.

MANAGEMENT: No dose adjustment is recommended; however, it may be advisable to monitor platelet count for signs of decreased efficacy of avatrombopag.

References (3)
  1. (2023) "Product Information. Doptelet (avatrombopag)." Swedish Orphan Biovitrum Pty Ltd
  2. (2021) "Product Information. Doptelet (avatrombopag)." Swedish Orphan Biovitrum Ltd
  3. (2021) "Product Information. Doptelet (avatrombopag)." AkaRx, Inc.

Drug and food interactions

Moderate

avatrombopag food

Applies to: avatrombopag

ADJUST DOSING INTERVAL: Food reduces the variability in oral absorption and bioavailability of avatrombopag. According to the product labeling, avatrombopag peak plasma concentration (Cmax) and systemic exposure (AUC) were not affected when administered with either a low-fat (500 calories; 3 g fat, 15 g proteins, 108 g carbohydrates) or high-fat (918 calories; 59 g fat, 39 g proteins, 59 g carbohydrates) meal. However, the variability of avatrombopag exposure was reduced by 40% to 60% with food, and the time to reach Cmax was delayed by 0 to 2 hours relative to the fasted state.

MANAGEMENT: To ensure consistent absorption and plasma drug levels, avatrombopag should be taken with food.

References (1)
  1. (2018) "Product Information. Doptelet (avatrombopag)." Dova Pharmaceuticals

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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