INS and cardiac arrhythmia: Insulin can neutralize the effect of catecholamines favouring glucose uptake, enormous boost in glycogen content in the liver, skeletal and cardiac muscles, and promote lipogenesis in animals with scorpion sting (Yugandhar et al., 1999). Moreover, administration of insulin along with an alpha blocker and sodium bicarbonate can diminish the rate of arrhythmias and also reverse the metabolic and electrocardiographic changes after scorpion envenomation (Radha et al., 1988)