Drug interactions
Fluoxetine + Sodium sulfate / potassium sulfate / magnesium sulfate
Severity: Moderate
Fluoxetine and Sodium sulfate / potassium sulfate / magnesium sulfate: 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
Fluoxetine can lower the seizure threshold, while sulfate bowel preparations can cause electrolyte disturbances that rarely provoke seizures. Combining them may raise seizure risk in vulnerable patients.
What this interaction means in plain words
Fluoxetine and Sodium sulfate / potassium sulfate / magnesium sulfate 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 seizure risk from lowered seizure threshold and bowel prep-induced fluid and electrolyte shifts.
What to do
Screen for seizure history or hyponatremia before use and maintain hydration. Check electrolytes in high-risk patients.
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 Fluoxetine
- Fluoxetine + Isocarboxazid Contraindicated
- Fluoxetine + Mavacamten Contraindicated
- Fluoxetine + Methylene blue Contraindicated
- Fluoxetine + Phenelzine Contraindicated
- Fluoxetine + Pimozide Contraindicated
- Fluoxetine + Rasagiline Contraindicated
Frequently asked questions
Can I take Fluoxetine with Sodium sulfate / potassium sulfate / magnesium sulfate?
MediHelp rates the interaction as moderate. Fluoxetine and Sodium sulfate / potassium sulfate / magnesium sulfate 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. Fluoxetine can lower the seizure threshold, while sulfate bowel preparations can cause electrolyte disturbances that rarely provoke seizures. Combining them may raise seizure risk in vulnerable patients.
How serious is the interaction between Fluoxetine and Sodium sulfate / potassium sulfate / magnesium sulfate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Screen for seizure history or hyponatremia before use and maintain hydration. Check electrolytes in high-risk patients.
What other medicines interact with Fluoxetine?
MediHelp also lists interactions of Fluoxetine with, for example, Isocarboxazid, Mavacamten, Methylene blue. The full list is on the Fluoxetine page.
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