Drug interactions
Fluoxetine + Glimepiride-pioglitazone
Severity: Moderate
Fluoxetine and Glimepiride-pioglitazone: 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 blood glucose and may potentiate sulfonylurea-induced hypoglycemia. Fluoxetine also inhibits CYP2C9, which could raise glimepiride levels.
What this interaction means in plain words
Fluoxetine and Glimepiride-pioglitazone 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 belongs to Central Nervous System; Glimepiride-pioglitazone belongs to Endocrine.
Why it happens
Improved insulin sensitivity from SSRI effects plus CYP2C9 inhibition reducing glimepiride clearance.
What to do
Monitor blood glucose when starting, changing or stopping fluoxetine and lower the glimepiride dose if hypoglycemia occurs.
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 Glimepiride-pioglitazone
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 Glimepiride-pioglitazone?
MediHelp rates the interaction as moderate. Fluoxetine and Glimepiride-pioglitazone 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 blood glucose and may potentiate sulfonylurea-induced hypoglycemia. Fluoxetine also inhibits CYP2C9, which could raise glimepiride levels.
How serious is the interaction between Fluoxetine and Glimepiride-pioglitazone?
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 blood glucose when starting, changing or stopping fluoxetine and lower the glimepiride dose if hypoglycemia occurs.
What other medicines interact with Glimepiride-pioglitazone?
MediHelp also lists interactions of Glimepiride-pioglitazone with, for example, Fluconazole, Gemfibrozil, Insulin aspart. The full list is on the Glimepiride-pioglitazone page.
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