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Drug Interactions between Iclusig and stiripentol

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

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Interactions between your drugs

Moderate

stiripentol PONATinib

Applies to: stiripentol and Iclusig (ponatinib)

MONITOR: Coadministration with inhibitors of CYP450 3A4 may increase the plasma concentrations of ponatinib, which is a substrate of the isoenzyme. In 22 healthy volunteers, administration of a single 15 mg oral dose of ponatinib in combination with the potent CYP450 3A4 inhibitor ketoconazole (400 mg daily) increased ponatinib peak plasma concentration (Cmax) and systemic exposure (AUC) by 47% and 78%, respectively, compared to administration of ponatinib alone. No data are available for use with less potent CYP450 3A4 inhibitors.

MANAGEMENT: Caution is advised if ponatinib is used in combination with moderate CYP450 3A4 inhibitors. Patients should be monitored for potentially increased side effects such as thromboembolism, ischemia, congestive heart failure, hypertension, hepatotoxicity, pancreatitis, myelosuppression, hemorrhage, and fluid retention.

References

  1. (2012) "Product Information. Iclusig (ponatinib)." Ariad Pharmaceuticals Inc

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Drug and food interactions

Moderate

stiripentol food

Applies to: stiripentol

GENERALLY AVOID: Taking stiripentol on an empty stomach may reduce its oral bioavailability. Stiripentol degrades rapidly when exposed to gastric acid in an empty stomach.

GENERALLY AVOID: Alcohol may potentiate the depressant effects of stiripentol on the central nervous system. Concomitant use may result in increased sedation and dizziness as well as impairment of psychomotor skills.

GENERALLY AVOID: It is not known whether stiripentol may reduce theophylline and caffeine metabolism, as data on the potential for inhibition of CYP450 1A2 are limited. Consumption of foods and nutritional products such as cola drinks (which contain significant quantities of caffeine) and chocolate (which contains caffeine and trace amounts of theophylline) may be unsafe during treatment with stiripentol, particularly in children.

MANAGEMENT: Stiripentol should be taken during a meal for optimal absorption; however, it should not be taken with milk, dairy products (e.g., yogurt, soft cream cheese), fruit juice, or carbonated beverages. Patients should be advised to avoid or limit consumption of alcohol and to avoid activities requiring mental alertness such as driving or operating hazardous machinery until they know how the medication affects them. Food and beverages that may contain caffeine or theophylline such as colas, chocolate, coffee, tea, or energy drinks should also be avoided during treatment with stiripentol.

References

  1. Canadian Pharmacists Association (2006) e-CPS. http://www.pharmacists.ca/function/Subscriptions/ecps.cfm?link=eCPS_quikLink
  2. EMEA. European Medicines Agency (2007) EPARs. European Union Public Assessment Reports. http://www.ema.europa.eu/ema/index.jsp?curl=pages/includes/medicines/medicines_landingpage.jsp&mid
  3. (2018) "Product Information. Diacomit (stiripentol)." Biocodex USA

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Moderate

PONATinib food

Applies to: Iclusig (ponatinib)

GENERALLY AVOID: Coadministration with grapefruit juice is likely to increase the plasma concentrations of ponatinib, which is primarily metabolized by CYP450 3A4. However, the interaction has not been studied. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit.

MANAGEMENT: The consumption of grapefruit, grapefruit juice, and supplements that contain grapefruit extract should be avoided during treatment with ponatinib.

References

  1. (2012) "Product Information. Iclusig (ponatinib)." Ariad Pharmaceuticals Inc

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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.