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Drug Interactions between Ditropan and osilodrostat

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

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Interactions between your drugs

Moderate

oxyBUTYnin osilodrostat

Applies to: Ditropan (oxybutynin) and osilodrostat

MONITOR: Coadministration with osilodrostat may increase the plasma concentrations of drugs that are metabolized by CYP450 1A2, 2C19, 2D6, and/or 3A4. Osilodrostat has been shown to be a moderate inhibitor of CYP450 1A2, a mild to borderline moderate inhibitor of CYP450 2C19, and a weak inhibitor of CYP450 2D6 and 3A4. In a pharmacokinetic study with 20 healthy volunteers using a single 50 mg dose of osilodrostat and a probe drug cocktail, osilodrostat increased the exposures to caffeine (CYP450 1A2 substrate), omeprazole (CYP450 2C19 substrate), dextromethorphan (CYP450 2D6 substrate), and midazolam (CYP450 3A4/5 substrate) by 2.5-, 1.9-, 1.5- and 1.5-fold, respectively.

MANAGEMENT: Caution is advised when osilodrostat is used concurrently with drugs that are substrates of CYP450 1A2, 2C19, 2D6 and/or 3A4, particularly those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever osilodrostat is added to or withdrawn from therapy.

References

  1. (2020) "Product Information. Isturisa (osilodrostat)." Recordati Rare Diseases Inc
  2. (2022) "Product Information. Isturisa (osilodrostat)." Recordati Rare Diseases Australia Pty Ltd, ISTURISA PI v1.1
  3. (2021) "Product Information. Isturisa (osilodrostat)." Recordati Rare Diseases UK Ltd

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Drug and food interactions

Moderate

oxyBUTYnin food

Applies to: Ditropan (oxybutynin)

GENERALLY AVOID: Use of anticholinergic agents with alcohol may result in sufficient impairment of attention so as to render driving and operating machinery more hazardous. In addition, the potential for abuse may be increased with the combination. The mechanism of interaction is not established but may involve additive depressant effects on the central nervous system. No effect of oral propantheline or atropine on blood alcohol levels was observed in healthy volunteers when administered before ingestion of a standard ethanol load. However, one study found impairment of attention in subjects given atropine 0.5 mg or glycopyrrolate 1 mg in combination with alcohol.

MANAGEMENT: Alcohol should generally be avoided during therapy with anticholinergic agents. Patients should be counseled to avoid activities requiring mental alertness until they know how these agents affect them.

References

  1. Linnoila M (1973) "Drug effects on psychomotor skills related to driving: interaction of atropine, glycopyrrhonium and alcohol." Eur J Clin Pharmacol, 6, p. 107-12

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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.

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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