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Indian J Pharmacol. 2009 Jun;41(3):125-8. doi: 10.4103/0253-7613.55213.

Effect of atorvastatin and hydroxychloroquine combination on blood glucose in alloxan-induced diabetic rats.

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  • 1Department of Medical Affairs and Clinical Research, Ipca Laboratories Ltd., 142 AB, Kandivli Industrial Estate, Kandivli (West), Mumbai - 400 067, India.



To evaluate the antihyperglycemic activity of atorvastatin and hydroxychloroquine combination in alloxan-induced diabetic rats.


Alloxan induced diabetic Wistar male rats were randomized into six groups of 6 rats each. (Normal rats, diabetic control, atorvastatin (ATV), hydroxychloroquine (HCQ), ATV 5 mg /kg + HCQ 100 mg/kg, and ATV 10 mg/kg + HCQ 200 mg/kg). The rats were treated for 9 days and blood samples were collected at baseline and end of therapy. These samples were analyzed for plasma glucose by autoanalyzer. Changes in body weight, water, food intakes and total protein content were also recorded.


Atorvastatin and hydroxychloroquine alone and in combination reported significant fall in blood glucose level from baseline. Fall in glucose level was significantly more in high dose combination of atorvastatin and hydroxychloroquine (ATV: 10 mg/kg + HCQ: 200 mg/kg) as compared to other study treatment groups (ATV: 17% Vs HCQ: 7% Vs ATV 5mg/kg + HCQ 100mg /kg: 14% Vs ATV 10mg/kg + HCQ 200mg /kg: 21%; p<0.01). ATV and HCQ individually and in combination also improved the body weight loss. The weight gain was significantly more in combination treated rats as compared to positive control group and greater than those who received atorvastatin and hydroxychloroquine alone. Rats treated with the combination also reported significant decrease in food intake and significant increase in total protein.


Increased hypoglycemic effect in combination may be due to potentiation or synergism between HCQ and ATV. Further studies are required to demonstrate clinically significant antidiabetic effect.


Antihyperglycemic activity; alloxan; atorvastatin; hydroxychloroquine; plasma glucose

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