Anacin has clear antipyretic and analgesic effects. Anacin is mainly a compound combining aminopyrine and sodium sulfite, which is easily soluble in water and has a significant antipyretic effect, as well as a strong analgesic effect. The clinical indications of Anacin are mainly for fever, accompanied by body pain and muscle pain, such as upper respiratory tract infection, the patient’s body temperature exceeds 38.5℃, accompanied by body pain, headache and muscle pain, this situation can use Anacin. For some rheumatic neuralgia, including toothache, etc., just such pain, it is generally not recommended as the first choice for application. For example, it can cause urticaria, drug rash, severe exfoliative dermatitis, and herpetic epidermolysis bullosa, which can be life-threatening, and can also cause thrombocytopenic purpura, autoimmune hemolytic anemia, aplastic anemia, and other diseases. Therefore, it is advisable to use it with caution in clinical practice for just general pain, and it is recommended to apply Anacin for pain relief under the guidance of a specialist.