Skip to content

Drug interactions

Ivermectin + Lasmiditan

Severity: Moderate

Ivermectin and Lasmiditan: moderate 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

Lasmiditan inhibits intestinal P-glycoprotein, which may increase ivermectin exposure. Clinical significance is uncertain given ivermectin's wide safety margin, but additive CNS effects such as dizziness are possible.

What this interaction means in plain words

Ivermectin and Lasmiditan can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

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

Evidence level: Low

Why it happens

Inhibition of intestinal P-glycoprotein reduces efflux of ivermectin.

What to do

Monitor for dizziness, sedation and other CNS effects if used together. Consider separating dosing in time and avoid repeated ivermectin dosing.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Ivermectin and Lasmiditan, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 14 days on the web. No card needed.

Frequently asked questions

Can I take Ivermectin with Lasmiditan?

MediHelp rates the interaction as moderate. Ivermectin and Lasmiditan can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Lasmiditan inhibits intestinal P-glycoprotein, which may increase ivermectin exposure. Clinical significance is uncertain given ivermectin's wide safety margin, but additive CNS effects such as dizziness are possible.

How serious is the interaction between Ivermectin and Lasmiditan?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for dizziness, sedation and other CNS effects if used together. Consider separating dosing in time and avoid repeated ivermectin dosing.

What other medicines interact with Ivermectin?

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

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in