Drug interactions
Nortriptyline + Sodium sulfate / ?magnesium sulfate / potassium chloride
Severity: Moderate
Nortriptyline and Sodium sulfate / ?magnesium sulfate / potassium chloride: 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
Bowel preparation causes fluid and electrolyte shifts, and tricyclics lower the seizure threshold. Seizures during bowel preparation are mostly linked to hyponatremia and other electrolyte disturbances, so combination may add risk.
What this interaction means in plain words
Nortriptyline and Sodium sulfate / ?magnesium sulfate / potassium chloride 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
Electrolyte disturbance from bowel preparation combined with tricyclic lowering of seizure threshold.
What to do
Ensure adequate hydration and consider checking electrolytes in high-risk patients. Counsel patients to report confusion, severe vomiting or seizures.
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 Nortriptyline with Sodium sulfate / ?magnesium sulfate / potassium chloride?
MediHelp rates the interaction as moderate. Nortriptyline and Sodium sulfate / ?magnesium sulfate / potassium chloride 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. Bowel preparation causes fluid and electrolyte shifts, and tricyclics lower the seizure threshold. Seizures during bowel preparation are mostly linked to hyponatremia and other electrolyte disturbances, so combination may add risk.
How serious is the interaction between Nortriptyline and Sodium sulfate / ?magnesium sulfate / potassium chloride?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Ensure adequate hydration and consider checking electrolytes in high-risk patients. Counsel patients to report confusion, severe vomiting or seizures.
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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