Drug interactions
Lamotrigine + Olopatadine intranasal
Severity: Moderate
Lamotrigine and Olopatadine 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
Intranasal olopatadine can cause somnolence and lamotrigine commonly causes dizziness and drowsiness. Together they may produce additive sedation and impaired psychomotor performance.
What this interaction means in plain words
Lamotrigine and Olopatadine 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 depressant effects.
What to do
Counsel patients about drowsiness and avoid driving until response is known. Consider a non-sedating alternative nasal agent if sedation occurs.
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 Olopatadine intranasal?
MediHelp rates the interaction as moderate. Lamotrigine and Olopatadine 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. Intranasal olopatadine can cause somnolence and lamotrigine commonly causes dizziness and drowsiness. Together they may produce additive sedation and impaired psychomotor performance.
How serious is the interaction between Lamotrigine and Olopatadine 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: Counsel patients about drowsiness and avoid driving until response is known. Consider a non-sedating alternative nasal agent if sedation occurs.
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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