Drug interactions
Metformin-repaglinide + Thyroid desiccated
Severity: Moderate
Metformin-repaglinide and Thyroid desiccated: 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
Thyroid hormone can raise blood glucose and increase glucose requirements in diabetic patients, which may blunt the effect of antidiabetic drugs. Starting or increasing the thyroid dose may worsen control, and reducing it may lead to hypoglycemia.
What this interaction means in plain words
Metformin-repaglinide and Thyroid desiccated 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.
Why it happens
Thyroid hormones increase hepatic glucose output and metabolic rate, opposing the glucose-lowering effects of metformin and repaglinide.
What to do
Monitor blood glucose when thyroid therapy is started, changed or stopped, and adjust antidiabetic doses as needed.
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?
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Other interactions of Metformin-repaglinide
Frequently asked questions
Can I take Metformin-repaglinide with Thyroid desiccated?
MediHelp rates the interaction as moderate. Metformin-repaglinide and Thyroid desiccated 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. Thyroid hormone can raise blood glucose and increase glucose requirements in diabetic patients, which may blunt the effect of antidiabetic drugs. Starting or increasing the thyroid dose may worsen control, and reducing it may lead to hypoglycemia.
How serious is the interaction between Metformin-repaglinide and Thyroid desiccated?
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 thyroid therapy is started, changed or stopped, and adjust antidiabetic doses as needed.
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.
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