Composition Each vial contains lyophilized preparation of Snake Venom Antiserum. After reconstitution each ml Snake Venom Antiserum neutralizes not less than Cobra venom (Naja naja) 0.60 mg, Common Krait venom (Bungarus caeruleus) 0.45 mg, Russell's Viper venom (Vipera russelli) 0.60 mg, Saw scaled Viper venom (Echis carinatus) 0.45 mg.