Drug interactions
Amitriptyline + Metformin-sitagliptin
Severity: Minor
Amitriptyline and Metformin-sitagliptin: 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
Amitriptyline can affect glucose levels, causing either hyperglycemia or hypoglycemia, and tricyclics may promote weight gain. The effect on metformin and sitagliptin is unpredictable and usually minor.
What this interaction means in plain words
Amitriptyline and Metformin-sitagliptin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Amitriptyline belongs to Central Nervous System; Metformin-sitagliptin belongs to Endocrine.
Why it happens
Possible pharmacodynamic effects on glucose regulation and appetite; mechanism not clearly established.
What to do
Monitor blood glucose when amitriptyline is started, changed or stopped.
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-sitagliptin
Other interactions of Amitriptyline
- Amitriptyline + Isocarboxazid Contraindicated
- Amitriptyline + Methylene blue Contraindicated
- Amitriptyline + Phenelzine Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amitriptyline + Procarbazine Contraindicated
- Amitriptyline + Safinamide Contraindicated
Frequently asked questions
Can I take Amitriptyline with Metformin-sitagliptin?
MediHelp rates the interaction as minor. Amitriptyline and Metformin-sitagliptin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Amitriptyline can affect glucose levels, causing either hyperglycemia or hypoglycemia, and tricyclics may promote weight gain. The effect on metformin and sitagliptin is unpredictable and usually minor.
How serious is the interaction between Amitriptyline and Metformin-sitagliptin?
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 amitriptyline is started, changed or stopped.
What other medicines interact with Metformin-sitagliptin?
MediHelp also lists interactions of Metformin-sitagliptin with, for example, Clozapine, Contrast media, Diatrizoate meglumine / diatrizoate. The full list is on the Metformin-sitagliptin page.
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