Drug interactions
Empagliflozin-metformin + Levothyroxine
Severity: Minor
Empagliflozin-metformin and Levothyroxine: 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
Thyroid hormone replacement, particularly at doses that cause supraphysiologic thyroid hormone levels, can raise blood glucose and increase insulin requirements. This may blunt the glucose-lowering effect of empagliflozin-metformin in diabetic patients.
What this interaction means in plain words
Empagliflozin-metformin and Levothyroxine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Empagliflozin-metformin belongs to Endocrine; Levothyroxine belongs to Endocrine.
Why it happens
Thyroid hormones increase hepatic glucose output and gluconeogenesis and accelerate glucose absorption, opposing antidiabetic drugs pharmacodynamically.
What to do
Monitor glucose and HbA1c when levothyroxine is started or its dose changed, and adjust the antidiabetic regimen if control worsens. Keep TSH in the target range to avoid over-replacement.
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 Empagliflozin-metformin
Other interactions of Levothyroxine
Frequently asked questions
Can I take Empagliflozin-metformin with Levothyroxine?
MediHelp rates the interaction as minor. Empagliflozin-metformin and Levothyroxine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Thyroid hormone replacement, particularly at doses that cause supraphysiologic thyroid hormone levels, can raise blood glucose and increase insulin requirements. This may blunt the glucose-lowering effect of empagliflozin-metformin in diabetic patients.
How serious is the interaction between Empagliflozin-metformin and Levothyroxine?
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 glucose and HbA1c when levothyroxine is started or its dose changed, and adjust the antidiabetic regimen if control worsens. Keep TSH in the target range to avoid over-replacement.
What other medicines interact with Empagliflozin-metformin?
MediHelp also lists interactions of Empagliflozin-metformin with, for example, Contrast media, Diatrizoate meglumine / diatrizoate, Diatrizoate. The full list is on the Empagliflozin-metformin page.
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