Preanesthetic medication is usually injected into muscle in30‐60minutes before narcotic is injected ﹒ Generally applied one is atropine(0 ﹒ 02mg/kg)﹒ 0 ﹒ 5mg atropine and sodium Phenobarbital(0 ﹒ 1g)。It should be put into hot water(more than50 centidegree ......