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Drug interactions

Lasmiditan + Meclizine

Severity: Moderate

Lasmiditan and Meclizine: 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 can cause sedation, dizziness and cognitive effects, and meclizine can add to these. Combined use may increase impairment.

What this interaction means in plain words

Lasmiditan and Meclizine 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 belongs to Central Nervous System; Meclizine belongs to Respiratory.

Evidence level: Low

Why it happens

Additive CNS depression from 5-HT1F agonist effects and H1-antihistamine sedation.

What to do

Counsel patients not to drive for at least 8 hours after lasmiditan and to avoid other sedatives around dosing. Monitor for excessive drowsiness and dizziness.

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.

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Frequently asked questions

Can I take Lasmiditan with Meclizine?

MediHelp rates the interaction as moderate. Lasmiditan and Meclizine 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 can cause sedation, dizziness and cognitive effects, and meclizine can add to these. Combined use may increase impairment.

How serious is the interaction between Lasmiditan and Meclizine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel patients not to drive for at least 8 hours after lasmiditan and to avoid other sedatives around dosing. Monitor for excessive drowsiness and dizziness.

What other medicines interact with Meclizine?

MediHelp also lists interactions of Meclizine with, for example, Belladonna and opium, Benzhydrocodone / acetaminophen, Brexanolone. The full list is on the Meclizine page.

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

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