Skip to content

Drug interactions

Amitriptyline + Metformin-repaglinide

Severity: Minor

Amitriptyline and Metformin-repaglinide: 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 have been associated with alterations in glycemic control, and amitriptyline may occasionally enhance hypoglycemia with antidiabetic agents. The effect is inconsistent and usually of limited clinical importance.

What this interaction means in plain words

Amitriptyline and Metformin-repaglinide 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-repaglinide belongs to Endocrine.

Evidence level: Low

Why it happens

Possible pharmacodynamic effect on glucose homeostasis; the mechanism is not well established.

What to do

No dose change is needed routinely. Monitor blood glucose when amitriptyline is started or stopped in patients with diabetes.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Amitriptyline and Metformin-repaglinide, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Amitriptyline with Metformin-repaglinide?

MediHelp rates the interaction as minor. Amitriptyline and Metformin-repaglinide 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 have been associated with alterations in glycemic control, and amitriptyline may occasionally enhance hypoglycemia with antidiabetic agents. The effect is inconsistent and usually of limited clinical importance.

How serious is the interaction between Amitriptyline and Metformin-repaglinide?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose change is needed routinely. Monitor blood glucose when amitriptyline is started or stopped in patients with diabetes.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in