Effects of ethanol extract of C. asiatica (CA) on glucose tolerance in type 2 diabetic rats. Values are means and standard deviations represented by vertical bars (n = 11). Fasted rats were given ethanol extract of C. asiatica (250 mg/kg, 500 mg/kg, and 1000 mg/kg body weight) or Glibenclamide (GC) (0.5 mg/Kg) or only water (control) by oral administration with glucose (2.5 g/kg body weight). Mean values marked with an asterisk (*) were significantly different from those of respective control rats (p < 0.05). (Derived from repeated-measures ANOVA and adjusted using Bonferroni correction).