How Long Does It Take for Metformin to Lower Blood Sugar?
Metformin typically begins lowering blood sugar within 2-3 days of starting treatment. Most patients see noticeable improvements in fasting glucose levels within the first week, with maximum effects usually occurring after 2-3 months of consistent use. Clinical studies show metformin can reduce HbA1c levels by 1-2% over 3 months. The medication works by decreasing glucose production in the liver and improving insulin sensitivity in muscle tissue. Individual response times vary based on factors like dosage, diet, exercise habits, and baseline blood sugar levels. Your doctor will likely monitor your blood glucose regularly during the first few months to assess effectiveness and adjust dosing if needed.
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