Drug interactions
Mirtazapine + Topiramate
Severity: Moderate
Mirtazapine and Topiramate: 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
Both agents can cause somnolence, dizziness and cognitive slowing, and topiramate additionally causes word-finding difficulty and confusion. Combined use may increase impairment of alertness and daily functioning.
What this interaction means in plain words
Mirtazapine and Topiramate 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.
Mirtazapine belongs to Central Nervous System; Topiramate belongs to Central Nervous System.
Why it happens
Additive CNS depressant and cognitive effects.
What to do
Titrate each drug slowly and monitor for excessive sedation and cognitive impairment. Advise caution when driving or operating machinery.
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 Mirtazapine
- Isocarboxazid + Mirtazapine Contraindicated
- Mirtazapine + Phenelzine Contraindicated
- Mirtazapine + Pimozide Contraindicated
- Mirtazapine + Procarbazine Contraindicated
- Mirtazapine + Rasagiline Contraindicated
- Mirtazapine + Selegiline Contraindicated
Other interactions of Topiramate
Frequently asked questions
Can I take Mirtazapine with Topiramate?
MediHelp rates the interaction as moderate. Mirtazapine and Topiramate 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. Both agents can cause somnolence, dizziness and cognitive slowing, and topiramate additionally causes word-finding difficulty and confusion. Combined use may increase impairment of alertness and daily functioning.
How serious is the interaction between Mirtazapine and Topiramate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Titrate each drug slowly and monitor for excessive sedation and cognitive impairment. Advise caution when driving or operating machinery.
What other medicines interact with Mirtazapine?
MediHelp also lists interactions of Mirtazapine with, for example, Isocarboxazid, Phenelzine, Pimozide. The full list is on the Mirtazapine page.
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