The main ingredient of safflower injection is the extract of the Chinese herb safflower, which has the effect of activating blood circulation and removing blood stasis. It can be used to treat obstructive cerebrovascular disease, coronary heart disease, vasculitis and other diseases. Its dosage is related to the disease. For example, for the treatment of obstructive cerebrovascular disease, it can be used 15ml/time, diluted with 250-500ml of glucose injection and then administered intravenously, 1 time/day, usually 2-3 weeks as a course of treatment. If treating coronary heart disease, you can use 5-20ml intravenous drip each time, also diluted with glucose injection, generally 1-2 weeks as a course of treatment. Treatment of vasculitis intramuscular injection, mostly 2.5-5ml intramuscular injection, can be used 1-2 times/day.