Drug interactions
Aspirin / citric acid / sodium bicarbonate + Fluoxetine
Severity: Moderate
Aspirin / citric acid / sodium bicarbonate and Fluoxetine: 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
The effervescent aspirin product delivers a full antiplatelet dose, and combined with fluoxetine the risk of bleeding, especially from the upper gastrointestinal tract, is increased.
What this interaction means in plain words
Aspirin / citric acid / sodium bicarbonate and Fluoxetine 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 platelet inhibition from aspirin and SSRI-induced platelet serotonin depletion, plus aspirin mucosal injury.
What to do
Use the lowest effective aspirin dose for the shortest time and consider a proton pump inhibitor in high-risk patients. Counsel the patient to report black stools or unusual bruising.
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 Aspirin / citric acid / sodium bicarbonate with Fluoxetine?
MediHelp rates the interaction as moderate. Aspirin / citric acid / sodium bicarbonate and Fluoxetine 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. The effervescent aspirin product delivers a full antiplatelet dose, and combined with fluoxetine the risk of bleeding, especially from the upper gastrointestinal tract, is increased.
How serious is the interaction between Aspirin / citric acid / sodium bicarbonate and Fluoxetine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective aspirin dose for the shortest time and consider a proton pump inhibitor in high-risk patients. Counsel the patient to report black stools or unusual bruising.
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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