Pregnant women are not recommended to take Sanjiu cold and flu spirit, because the instructions of Sanjiu cold and flu spirit clearly mentioned that pregnant women should not use it. Sanjiu cold and flu is a compound preparation, in addition to the Chinese medicine to clear the heat, detoxification drugs, but also contains the ingredients of Western medicine. It includes acetaminophen, which is a kind of anti-inflammatory antipyretic and analgesic drug that can have the effect of reducing fever after taking. Although the amount of acetaminophen in Sanjiu cold and flu medicine is not large, only 100mg, generally can not play a significant effect of reducing fever and sweating, but such a small amount for pregnant women to use with caution. It also contains chlorpheniramine maleate, which is an antihistamine that can relieve the nasal congestion of runny nose and sneezing when you have a cold, and it should be used with caution by pregnant women. It also contains caffeine, which can relieve headache when you have a cold, so pregnant women should not take it.