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Drug interactions

Loperamide + Sirolimus

Severity: Minor

Loperamide and Sirolimus: minor interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Sirolimus is a P-glycoprotein substrate and may compete with loperamide for efflux, possibly raising loperamide levels slightly. A meaningful clinical effect is uncertain.

What this interaction means in plain words

Loperamide and Sirolimus have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Loperamide belongs to Gastrointestinal Tract; Sirolimus belongs to Miscellaneous.

Evidence level: Low

Why it happens

Possible competition for P-glycoprotein efflux.

What to do

No specific adjustment is needed at labeled loperamide doses. Monitor for excess constipation or sedation.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Loperamide with Sirolimus?

MediHelp rates the interaction as minor. Loperamide and Sirolimus have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Sirolimus is a P-glycoprotein substrate and may compete with loperamide for efflux, possibly raising loperamide levels slightly. A meaningful clinical effect is uncertain.

How serious is the interaction between Loperamide and Sirolimus?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No specific adjustment is needed at labeled loperamide doses. Monitor for excess constipation or sedation.

What other medicines interact with Loperamide?

MediHelp also lists interactions of Loperamide with, for example, Amiodarone, Amisulpride, Anagrelide. The full list is on the Loperamide page.

Full monographs, dosing and an interaction checker in the MediHelp app

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