Qualified coarse salt is edible, but some unscrupulous vendors sell unqualified coarse salt privately. Especially in rural areas, this unqualified “coarse salt” contains barium chloride, barium chloride into the body is mainly distributed in the muscle, it is a muscle poisoning, can cause poisoning people appear facial, limb pins and needles-like numbness, muscle tremors, spasms, convulsions; serious muscle paralysis gradually, pupils dilated and can not be adjusted, tongue muscle paralysis The person may die at any time due to cardiac arrest and respiratory muscle paralysis. Immediately after the occurrence of poisoning, vomiting should be induced, and the stomach should be sent to hospital for lavage, and then treated with the special antidote sodium sulfate. Pay attention to potassium supplementation, prevention of cardiac arrhythmia, and nutrition of the heart muscle. In case of respiratory paralysis, artificial respiration should be performed immediately, tracheal intubation or incision should be performed if necessary, and central respiratory stimulants should be given.