Objectives: "High dose" metformin therapy (2,550 mg/day) is reported to improve glycemic control in type 2 diabetic patients with obesity (body mass index (BMI) > or = 30). Some have reported that metformin therapy, even in low doses (500-750 mg/day), improves glycemic control in non-obese type 2 diabetic patients (BMI approximately 25). However, it is unclear whether "low dose" metformin improves glycemic control better than acarbose in non-obese type 2 diabetic patients, which has been shown to improve glycemic control in type 2 diabetes with obesity.
Methods: We randomly divided 22 non-obese type 2 diabetic patients (mean BMI approximately 25) into two groups (A = 11, B = 11). Group A was treated with "low dose" metformin (500-750 mg/day) for 3 months, and switched to acarbose (150-300 mg/day) for another 3 months. Group B was treated with acarbose first, and then switched to "low dose" metformin.
Results: "Low dose" metformin significantly decreased the fasting plasma glucose (FPG) and HbA1c level in both groups A and B, whereas acarbose decreased HbA1c levels in group B but not in group A. Overall, "low dose" metformin significantly decreased HbA1c (p=0.0165) levels as compared to acarbose.
Conclusion: In conclusion, "low dose" metformin therapy improved glycemic control better than acarbose in non-obese diabetics.
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| http://dx.doi.org/10.1900/RDS.2004.1.89 | DOI Listing |
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