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Drug interactions

Istradefylline + Ivermectin

Severity: Minor

Istradefylline and Ivermectin: 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

Istradefylline at higher doses inhibits P-glycoprotein and raised exposure to P-gp substrates in clinical studies. Ivermectin exposure may rise, though the safety margin of ivermectin makes significant harm unlikely.

What this interaction means in plain words

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

Istradefylline belongs to Central Nervous System; Ivermectin belongs to Anti Parasitic.

Evidence level: Low

Why it happens

Istradefylline inhibits P-glycoprotein, decreasing ivermectin efflux.

What to do

No dose change is typically needed. Monitor for increased adverse effects of ivermectin such as dizziness.

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 Istradefylline with Ivermectin?

MediHelp rates the interaction as minor. Istradefylline and Ivermectin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Istradefylline at higher doses inhibits P-glycoprotein and raised exposure to P-gp substrates in clinical studies. Ivermectin exposure may rise, though the safety margin of ivermectin makes significant harm unlikely.

How serious is the interaction between Istradefylline and Ivermectin?

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 dose change is typically needed. Monitor for increased adverse effects of ivermectin such as dizziness.

What other medicines interact with Ivermectin?

MediHelp also lists interactions of Ivermectin with, for example, Erdafitinib, Lasmiditan, Quinidine. The full list is on the Ivermectin page.

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

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