Pregnant women are not recommended to take Sanjiu Cold & Flu Spirit because the instruction of Sanjiu Cold & Flu Spirit clearly mentions that pregnant women should use it with caution. Sanjiu Cold & Flu Ling is a compound preparation, which contains western medicines in addition to Chinese medicines to clear heat and detoxify the body. These include acetaminophen, an antipyretic and analgesic anti-inflammatory drug that can have an antipyretic effect when taken. Although the amount of acetaminophen inside the Sanjiu Cold & Flu medicine is not large, only 100mg, and usually does not have a significant fever-reducing and sweating effect, such a small amount is prudent for pregnant women to use when giving birth. It also contains chlorpheniramine maleate, which is an antihistamine that relieves the nasal congestion of a runny nose and sneezing when you have a cold, and is also used with caution by pregnant women. It also contains caffeine, which can relieve headaches when you have a cold, so try not to take it when you are pregnant.