Evidence map›Paper›PMID 40814473›Full record

ArticleJournal of family medicine and primary care2025

To study effects of metformin on thyroid functions in type-2 diabetes mellitus in patients attending OPD at Government Medical College, Bidar.

Prashant Patil, Sachin Gudage, Mahesh B Tondare, Sangamesh B Tondare, Praveen Ganganahalli

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Article in Journal of family medicine and primary care, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Prashant PatilDepartment of General Medicine, Bidar Institute of Medical Sciences, Bidar, Karnataka, India.
Sachin GudageDepartment of General Medicine, Bidar Institute of Medical Sciences, Bidar, Karnataka, India.
Mahesh B TondareDepartment of Community Medicine, Bidar Institute of Medical Sciences, Bidar, Karnataka, India.
Sangamesh B TondareDepartment of General Surgery, Gulberga Institute of Medical Sciences, Kalburgi, Karnataka, India.
Praveen GanganahalliDepartment of Community Medicine, BLDE(DU) Shri B. M. Patil Medical College, Vijayapura, Karnataka, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Metformin is one of the most used diabetes treating agents and has proved to be very effective, with a wide spectrum of efficacy, safety as well as being as agent that works at different spots in diabetes pathogenesis paradigm. Recently it has been reported that metformin is able to interfere with thyroid hormone profile, by decrease in the serum levels of thyrotropin (TSH) to subnormal levels in hypothyroid patients in stable levothyroxine (L-T4) treatment. Objectives: To study and compare the effect of metformin and non-metformin composed treatment of type-2 diabetes mellitus on thyroid functions. Methods: Comparative observational study was conducted among diabetic patients taking metformin as study and taking antidiabetic other than metformin as control group and analysed for the thyroid profile (TSH, fT3, fT4). Total 70 patients including both group from tertiary care teaching hospital were enrolled in to the study after taking informed verbal consent. Observations: The present study demonstrates that while the study group's fT3 and fT4 levels were lower than those of the control group, diabetic patients on non-metformin medication had statistically higher TSH (2.05 ± 0.15 mIU/mL vs. 2.35 ± 0.18 mIU/mL) levels than those taking metformin. Conclusion: Thyroid-stimulating hormone (TSH) levels may be somewhat or not at all decreased by metformin. Thyroid function monitoring is crucial for diabetic patients using metformin, particularly if they already have thyroid problems.

Indexed as

T3T4thyroid functionTSHtype-2 diabetes

Identifiers

PMID40814473
PMCPMC12349781

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