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Drug Interactions between asciminib and Propatuss Expectorant

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

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Interactions between your drugs

Moderate

HYDROcodone asciminib

Applies to: Propatuss Expectorant (guaifenesin / hydrocodone) and asciminib

MONITOR: Coadministration with asciminib may increase the plasma concentrations of drugs that are primarily metabolized by the CYP450 3A4 isoenzyme. The mechanism is reduced clearance due to inhibition of CYP450 3A4 by asciminib. When midazolam, a sensitive CYP450 3A4 substrate, was coadministered with asciminib 40 mg twice daily, midazolam peak plasma concentration (Cmax) and systemic exposure (AUC) increased by 11% and 28%, respectively. Likewise, the Cmax and AUC of midazolam increased by 17% and 24%, respectively, following coadministration with asciminib at 80 mg once daily, but increased by 58% and 88%, respectively, following coadministration with asciminib at 200 mg twice daily. These results suggest weak inhibition of CYP450 3A4 by asciminib.

MANAGEMENT: Caution is advised when asciminib is used concomitantly with drugs that are substrates of CYP450 3A4, particularly sensitive substrates or those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever asciminib is added to or withdrawn from therapy. The prescribing information recommends closely monitoring for the development of adverse reactions in patients receiving asciminib therapy at 80 mg total daily dose with certain CYP450 3A4 substrates where minimal concentration changes may lead to serious or life-threatening toxicities, and avoiding coadministration of these drugs with asciminib at the maximum recommended dosage of 200 mg twice daily. The prescribing information for concomitant medications should be consulted to assess the benefits versus risks of coadministration of a weak CYP450 3A4 inhibitor like asciminib and for any dosage adjustments that may be required.

References

  1. (2021) "Product Information. Scemblix (asciminib)." Novartis Pharmaceuticals

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Drug and food interactions

Major

HYDROcodone food

Applies to: Propatuss Expectorant (guaifenesin / hydrocodone)

GENERALLY AVOID: Alcohol may potentiate the central nervous system (CNS) depressant effects of opioid analgesics including hydrocodone. Concomitant use may result in additive CNS depression and impairment of judgment, thinking, and psychomotor skills. In more severe cases, hypotension, respiratory depression, profound sedation, coma, or even death may occur.

GENERALLY AVOID: Consumption of alcohol while taking some sustained-release formulations of hydrocodone may cause rapid release of the drug, resulting in high systemic levels of hydrocodone that may be potentially lethal. Alcohol apparently can disrupt the release mechanism of some sustained-release formulations. In study subjects, the rate of absorption of hydrocodone from an extended-release formulation was found to be affected by coadministration with 40% alcohol in the fasted state, as demonstrated by an average 2.4-fold (up to 3.9-fold in one subject) increase in hydrocodone peak plasma concentration and a decrease in the time to peak concentration. Alcohol also increased the extent of absorption by an average of 1.2-fold (up to 1.7-fold in one subject).

GENERALLY AVOID: Grapefruit juice may increase the plasma concentrations of hydrocodone. The proposed mechanism is inhibition of CYP450 3A4-mediated metabolism of hydrocodone by certain compounds present in grapefruit. Increased hydrocodone concentrations could conceivably increase or prolong adverse drug effects and may cause potentially fatal respiratory depression.

MANAGEMENT: Patients taking sustained-release formulations of hydrocodone should not consume alcohol or use medications that contain alcohol. In general, potent narcotics such as hydrocodone should not be combined with alcohol. Patients should also avoid consumption of grapefruit or grapefruit juice during treatment with hydrocodone.

References

  1. (2013) "Product Information. Zohydro ER (hydrocodone)." Zogenix, Inc

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Moderate

asciminib food

Applies to: asciminib

ADJUST DOSING INTERVAL: Food may reduce the oral bioavailability of asciminib. When a single 40 mg dose of asciminib was administered with a low-fat meal (400 calories; 25% fat) in healthy volunteers, asciminib peak plasma concentration (Cmax) and systemic exposure (AUC) decreased by 35% and 30%, respectively, compared to asciminib administered in the fasted state. Administration with a high-fat meal (1000 calories; 50% fat) decreased the Cmax and AUC of asciminib by 68% and 62%, respectively.

MANAGEMENT: To ensure adequate asciminib exposures, food consumption should be avoided for at least 2 hours before and 1 hour after taking asciminib.

References

  1. (2021) "Product Information. Scemblix (asciminib)." Novartis Pharmaceuticals
  2. (2022) "Product Information. Scemblix (asciminib)." Novartis Pharmaceuticals UK Ltd, Scemblix 20 mg film-

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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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