Drug interactions
Nortriptyline + Topiramate
Severity: Moderate
Nortriptyline 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 drugs can cause drowsiness and cognitive slowing, and together these effects may be more pronounced. Topiramate may also modestly alter tricyclic exposure in some patients, though this is rarely significant.
What this interaction means in plain words
Nortriptyline 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.
Nortriptyline belongs to Central Nervous System; Topiramate belongs to Central Nervous System.
Why it happens
Additive CNS depressant effects, with a possible minor pharmacokinetic contribution.
What to do
Start at low doses and titrate slowly while watching for sedation and cognitive impairment. Advise caution when driving or operating machinery until tolerance is established.
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 Nortriptyline
- Disopyramide + Nortriptyline Contraindicated
- Dofetilide + Nortriptyline Contraindicated
- Dronedarone + Nortriptyline Contraindicated
- Ibutilide + Nortriptyline Contraindicated
- Isocarboxazid + Nortriptyline Contraindicated
- Methylene blue + Nortriptyline Contraindicated
Other interactions of Topiramate
Frequently asked questions
Can I take Nortriptyline with Topiramate?
MediHelp rates the interaction as moderate. Nortriptyline 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 drugs can cause drowsiness and cognitive slowing, and together these effects may be more pronounced. Topiramate may also modestly alter tricyclic exposure in some patients, though this is rarely significant.
How serious is the interaction between Nortriptyline 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: Start at low doses and titrate slowly while watching for sedation and cognitive impairment. Advise caution when driving or operating machinery until tolerance is established.
What other medicines interact with Nortriptyline?
MediHelp also lists interactions of Nortriptyline with, for example, Disopyramide, Dofetilide, Dronedarone. The full list is on the Nortriptyline page.
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