It is intramuscular injection, 2-4 ml at a time, 1-2 times a day; Intravenous injection, 4ml each time, diluted with 20ml 50% 50% glucose injection and injected slowly, 1-2 times a day 1 time; Intravenous drip, once 20-40 ml, add 5% glucose injection 100-500 ml, and then slowly drip, 1-2 times a day 1 time.