Drug interactions
Metformin + Paroxetine
Severity: Minor
Metformin and Paroxetine: minor 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
SSRIs such as paroxetine can enhance glucose-lowering and occasionally cause hypoglycemia in patients with diabetes. The effect is variable and generally modest, but may be noticed when starting or stopping the SSRI.
What this interaction means in plain words
Metformin and Paroxetine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Metformin belongs to Endocrine; Paroxetine belongs to Central Nervous System.
Why it happens
Possible additive pharmacodynamic effect on glucose homeostasis; the mechanism is not well established.
What to do
Monitor blood glucose when paroxetine is started, changed or stopped in patients on metformin, and adjust antidiabetic therapy if glucose control shifts.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Paroxetine
- Isocarboxazid + Paroxetine Contraindicated
- Methylene blue + Paroxetine Contraindicated
- Paroxetine + Phenelzine Contraindicated
- Paroxetine + Pimozide Contraindicated
- Paroxetine + Procarbazine Contraindicated
- Paroxetine + Selegiline Contraindicated
Other interactions of Metformin
Frequently asked questions
Can I take Metformin with Paroxetine?
MediHelp rates the interaction as minor. Metformin and Paroxetine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. SSRIs such as paroxetine can enhance glucose-lowering and occasionally cause hypoglycemia in patients with diabetes. The effect is variable and generally modest, but may be noticed when starting or stopping the SSRI.
How serious is the interaction between Metformin and Paroxetine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood glucose when paroxetine is started, changed or stopped in patients on metformin, and adjust antidiabetic therapy if glucose control shifts.
What other medicines interact with Paroxetine?
MediHelp also lists interactions of Paroxetine with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Paroxetine page.
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