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Drug interactions

Linagliptin-metformin + Liotrix

Severity: Moderate

Linagliptin-metformin and Liotrix: moderate 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

Liotrix contains levothyroxine and liothyronine, which can raise blood glucose and may worsen control in patients with diabetes. Changes in thyroid dose can shift antidiabetic requirements.

What this interaction means in plain words

Linagliptin-metformin and Liotrix can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Evidence level: Moderate

Why it happens

Thyroid hormone increases hepatic glucose production and glucose absorption, opposing antidiabetic effect.

What to do

Monitor blood glucose when starting or adjusting liotrix and adjust antidiabetic doses as needed. Watch for hypoglycemia if thyroid hormone is reduced.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Linagliptin-metformin with Liotrix?

MediHelp rates the interaction as moderate. Linagliptin-metformin and Liotrix can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Liotrix contains levothyroxine and liothyronine, which can raise blood glucose and may worsen control in patients with diabetes. Changes in thyroid dose can shift antidiabetic requirements.

How serious is the interaction between Linagliptin-metformin and Liotrix?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood glucose when starting or adjusting liotrix and adjust antidiabetic doses as needed. Watch for hypoglycemia if thyroid hormone is reduced.

What other medicines interact with Linagliptin-metformin?

MediHelp also lists interactions of Linagliptin-metformin with, for example, Apalutamide, Carbamazepine, Contrast media. The full list is on the Linagliptin-metformin page.

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