Drug interactions
Fluoxetine + Glipizide-metformin
Severity: Moderate
Fluoxetine and Glipizide-metformin: 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 enhance glucose lowering and may lead to hypoglycemia in patients on antidiabetic drugs. Blood glucose may also become less predictable after SSRI initiation or discontinuation.
What this interaction means in plain words
Fluoxetine and Glipizide-metformin 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; Glipizide-metformin belongs to Endocrine.
Why it happens
SSRIs may improve insulin sensitivity and alter glucose regulation, producing additive pharmacodynamic effects; fluoxetine may also weakly inhibit CYP2C9.
What to do
Monitor blood glucose when fluoxetine is started, adjusted or stopped. Reduce the glipizide 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 Glipizide-metformin
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 Glipizide-metformin?
MediHelp rates the interaction as moderate. Fluoxetine and Glipizide-metformin 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 enhance glucose lowering and may lead to hypoglycemia in patients on antidiabetic drugs. Blood glucose may also become less predictable after SSRI initiation or discontinuation.
How serious is the interaction between Fluoxetine and Glipizide-metformin?
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 fluoxetine is started, adjusted or stopped. Reduce the glipizide dose if hypoglycemia occurs.
What other medicines interact with Glipizide-metformin?
MediHelp also lists interactions of Glipizide-metformin with, for example, Contrast media, Diatrizoate meglumine / diatrizoate, Diatrizoate. The full list is on the Glipizide-metformin page.
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