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Drug interactions

Amitriptyline + Repaglinide

Severity: Minor

Amitriptyline and 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

Amitriptyline may alter glycemic control and could add to the glucose-lowering effect of repaglinide, which can cause hypoglycemia. The effect is expected to be small.

What this interaction means in plain words

Amitriptyline and 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; Repaglinide belongs to Endocrine.

Evidence level: Low

Why it happens

Possible additive pharmacodynamic effect on glucose; mechanism not well established.

What to do

Monitor blood glucose after starting or stopping amitriptyline and educate the patient about hypoglycemia. Adjust repaglinide only if needed.

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.

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Frequently asked questions

Can I take Amitriptyline with Repaglinide?

MediHelp rates the interaction as minor. Amitriptyline and 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 may alter glycemic control and could add to the glucose-lowering effect of repaglinide, which can cause hypoglycemia. The effect is expected to be small.

How serious is the interaction between Amitriptyline and 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: Monitor blood glucose after starting or stopping amitriptyline and educate the patient about hypoglycemia. Adjust repaglinide only if needed.

What other medicines interact with Amitriptyline?

MediHelp also lists interactions of Amitriptyline with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Amitriptyline page.

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