Drug interactions
Metformin-repaglinide + Nortriptyline
Severity: Minor
Metformin-repaglinide and Nortriptyline: 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
Tricyclic antidepressants such as nortriptyline have been associated with changes in glucose handling, and occasionally hypoglycemia in patients on antidiabetic drugs. The effect is inconsistent and usually small. No firm clinical interaction is established.
What this interaction means in plain words
Metformin-repaglinide and Nortriptyline 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-repaglinide belongs to Endocrine; Nortriptyline belongs to Central Nervous System.
Why it happens
Possible additive glucose-lowering effect or altered insulin sensitivity; the mechanism is not well established.
What to do
Monitor blood glucose when nortriptyline is started or stopped in a patient on metformin and repaglinide, and adjust the antidiabetic doses only if glycemic 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 Metformin-repaglinide
Other interactions of Nortriptyline
- Disopyramide + Nortriptyline Contraindicated
- Dofetilide + Nortriptyline Contraindicated
- Dronedarone + Nortriptyline Contraindicated
- Ibutilide + Nortriptyline Contraindicated
- Isocarboxazid + Nortriptyline Contraindicated
- Methylene blue + Nortriptyline Contraindicated
Frequently asked questions
Can I take Metformin-repaglinide with Nortriptyline?
MediHelp rates the interaction as minor. Metformin-repaglinide and Nortriptyline have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Tricyclic antidepressants such as nortriptyline have been associated with changes in glucose handling, and occasionally hypoglycemia in patients on antidiabetic drugs. The effect is inconsistent and usually small. No firm clinical interaction is established.
How serious is the interaction between Metformin-repaglinide and Nortriptyline?
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 nortriptyline is started or stopped in a patient on metformin and repaglinide, and adjust the antidiabetic doses only if glycemic control shifts.
What other medicines interact with Metformin-repaglinide?
MediHelp also lists interactions of Metformin-repaglinide with, for example, Gemfibrozil, Apalutamide, Clarithromycin. The full list is on the Metformin-repaglinide page.
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