Drug interactions
Citalopram + Sodium sulfate / ?magnesium sulfate / potassium chloride
Severity: Moderate
Citalopram 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
Osmotic bowel preparations can cause fluid shifts and electrolyte disturbances that lower seizure threshold, and antidepressants such as citalopram also carry some seizure risk. Electrolyte changes may also worsen QT risk with citalopram.
What this interaction means in plain words
Citalopram 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
Bowel-prep-induced fluid and electrolyte disturbance (hyponatremia, hypokalemia) combined with the modest seizure-threshold-lowering effect of citalopram.
What to do
Ensure adequate hydration and consider checking electrolytes in high-risk patients. Do not interrupt citalopram unless advised, and advise patients to report confusion or seizure-like symptoms.
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 Citalopram
- Cisapride + Citalopram Contraindicated
- Citalopram + Dronedarone Contraindicated
- Citalopram + Escitalopram Contraindicated
- Citalopram + Isocarboxazid Contraindicated
- Citalopram + Methylene blue Contraindicated
- Citalopram + Phenelzine Contraindicated
Frequently asked questions
Can I take Citalopram with Sodium sulfate / ?magnesium sulfate / potassium chloride?
MediHelp rates the interaction as moderate. Citalopram 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. Osmotic bowel preparations can cause fluid shifts and electrolyte disturbances that lower seizure threshold, and antidepressants such as citalopram also carry some seizure risk. Electrolyte changes may also worsen QT risk with citalopram.
How serious is the interaction between Citalopram 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. Do not interrupt citalopram unless advised, and advise patients to report confusion or seizure-like symptoms.
What other medicines interact with Citalopram?
MediHelp also lists interactions of Citalopram with, for example, Cisapride, Dronedarone, Escitalopram. The full list is on the Citalopram page.
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