Drug interactions
Diazepam intranasal + Nortriptyline
Severity: Moderate
Diazepam intranasal and Nortriptyline: 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
Diazepam and nortriptyline both depress the CNS, and combined use increases sedation, psychomotor impairment and possibly respiratory depression. Intranasal diazepam is used for acute seizures, so unexpected oversedation can complicate recovery.
What this interaction means in plain words
Diazepam intranasal and Nortriptyline 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 GABA-A potentiation and tricyclic sedative actions.
What to do
Monitor sedation and respiratory function after diazepam doses, and counsel patients about driving and alcohol.
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
Frequently asked questions
Can I take Diazepam intranasal with Nortriptyline?
MediHelp rates the interaction as moderate. Diazepam intranasal and Nortriptyline 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. Diazepam and nortriptyline both depress the CNS, and combined use increases sedation, psychomotor impairment and possibly respiratory depression. Intranasal diazepam is used for acute seizures, so unexpected oversedation can complicate recovery.
How serious is the interaction between Diazepam intranasal and Nortriptyline?
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 sedation and respiratory function after diazepam doses, and counsel patients about driving and alcohol.
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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