Drug interactions
Lamotrigine + Midazolam intranasal
Severity: Moderate
Lamotrigine and Midazolam intranasal: 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
Midazolam causes dose-related sedation and respiratory depression, and other CNS depressants such as lamotrigine can add to this. The risk is greatest with higher doses and in patients with impaired breathing.
What this interaction means in plain words
Lamotrigine and Midazolam intranasal 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.
Why it happens
Additive CNS depression through pharmacodynamic synergy.
What to do
Monitor respiratory rate, oxygen saturation and level of consciousness after intranasal midazolam. Make sure resuscitation equipment is available and avoid repeat doses without observation.
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?
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Other interactions of Lamotrigine
Frequently asked questions
Can I take Lamotrigine with Midazolam intranasal?
MediHelp rates the interaction as moderate. Lamotrigine and Midazolam intranasal 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. Midazolam causes dose-related sedation and respiratory depression, and other CNS depressants such as lamotrigine can add to this. The risk is greatest with higher doses and in patients with impaired breathing.
How serious is the interaction between Lamotrigine and Midazolam intranasal?
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 respiratory rate, oxygen saturation and level of consciousness after intranasal midazolam. Make sure resuscitation equipment is available and avoid repeat doses without observation.
What other medicines interact with Lamotrigine?
MediHelp also lists interactions of Lamotrigine with, for example, Desogestrel-ethinyl estradiol, Divalproex, Dofetilide. The full list is on the Lamotrigine page.
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