Acetaminophen tablets belong to the aniline class of antipyretic and analgesic drugs, also known as paracetamol, mainly through the inhibition of cyclooxygenase, selective inhibition of prostaglandin synthesis in the hypothalamic thermoregulatory center, resulting in peripheral vasodilation, sweating and achieve the effect of antipyretic, the strength of its antipyretic effect is similar to that of aspirin; by inhibiting the synthesis and release of prostaglandins, etc., to improve the pain threshold and play an analgesic effect, for peripheral analgesia The effect is weaker than that of aspirin, and is only effective for mild to moderate pain. The drug has no significant anti-inflammatory effect. It is mainly used for fever caused by common cold or influenza. It can also be used to relieve mild to moderate pain, such as headache, migraine, toothache, dysmenorrhea, arthralgia, muscle pain, neuralgia, etc. Special attention should be paid to children under the age of 3 years due to underdeveloped liver and kidney function and should be avoided. The drug is a relatively easy to obtain over-the-counter drugs, so do not take large doses, especially for some compounded cold medicines contain acetaminophen, so prohibit the same acetaminophen composition of the compounded cold medicines at the same time, be alert to the occurrence of hepatotoxicity.