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Drug Interactions between Cerdelga and Sea-Calm

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

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Interactions between your drugs

Moderate

meclizine eliglustat

Applies to: Sea-Calm (meclizine) and Cerdelga (eliglustat)

MONITOR: Coadministration with eliglustat may increase the plasma concentrations of drugs that are primarily metabolized by CYP450 2D6. When metoprolol, a CYP450 2D6 substrate, was administered following multiple doses of eliglustat 127 mg twice daily, mean metoprolol peak plasma concentration (Cmax) and systemic exposure (AUC) increased by 1.7- and 2.3-fold, respectively, in CYP450 2D6 extensive metabolizers and 1.2- and 1.6-fold, respectively, in intermediate metabolizers compared to metoprolol administered alone.

MANAGEMENT: Caution is advised if eliglustat is used concomitantly with medications that undergo metabolism primarily by CYP450 2D6, particularly those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever eliglustat is added to or withdrawn from therapy.

References

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  2. Cerner Multum, Inc. "Australian Product Information." O 0
  3. "Product Information. Cerdelga (eliglustat)." Genzyme Corporation (2014):

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Drug and food interactions

Major

eliglustat food

Applies to: Cerdelga (eliglustat)

GENERALLY AVOID: Grapefruit juice may significantly increase the systemic exposure to eliglustat. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. Because eliglustat is predicted to cause prolongation of the PR, QTc, and QRS cardiac intervals at substantially elevated plasma concentrations, consumption of grapefruit juice during treatment may increase the risk of bradycardia, atrioventricular block, cardiac arrest, and serious ventricular arrhythmias such as torsade de pointes.

MANAGEMENT: Patients treated with eliglustat should avoid consumption of grapefruit and grapefruit juice.

References

  1. "Product Information. Cerdelga (eliglustat)." Genzyme Corporation (2014):

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Moderate

meclizine food

Applies to: Sea-Calm (meclizine)

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 "Drug effects on psychomotor skills related to driving: interaction of atropine, glycopyrrhonium and alcohol." Eur J Clin Pharmacol 6 (1973): 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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