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Drug Interactions between Aristada Initio and stiripentol

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

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Interactions between your drugs

Moderate

ARIPiprazole stiripentol

Applies to: Aristada Initio (aripiprazole) and stiripentol

MONITOR: Coadministration with inhibitors of CYP450 3A4 and/or 2D6 may increase the plasma concentrations of aripiprazole, which is primarily metabolized by these isoenzymes. According to the product labeling, administration of a single 15 mg dose of aripiprazole during treatment with the potent CYP450 3A4 inhibitor ketoconazole (200 mg/day for 14 days) increased the systemic exposure (AUC) to aripiprazole and its active metabolite, dehydro-aripiprazole, by 63% and 77%, respectively, compared to administration of aripiprazole alone. Likewise, administration of a 10 mg dose of aripiprazole with the potent CYP450 2D6 inhibitor quinidine (166 mg/day for 13 days) increased aripiprazole AUC by 112%, although dehydro-aripiprazole AUC was reduced by 35%.

MANAGEMENT: Pharmacologic response to aripiprazole should be monitored more closely whenever a CYP450 3A4 and/or 2D6 inhibitor is added to or withdrawn from therapy, and the aripiprazole dosage adjusted as necessary. The manufacturer recommends that aripiprazole dosage be reduced to one-half the normal dosage during concomitant administration with ketoconazole or quinidine, and additional dosage adjustments be made based on clinical evaluation. No dosage recommendations are available for concomitant administration with less potent CYP450 2D6 or 3A4 inhibitors.

References (1)
  1. (2002) "Product Information. Abilify (aripiprazole)." Bristol-Myers Squibb

Drug and food interactions

Moderate

ARIPiprazole food

Applies to: Aristada Initio (aripiprazole)

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
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 (3)
  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

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

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