Codeine tablets can mainly play the role of cough, sedation, analgesia and other effects, allergic to the drug ingredients, lactating women and other conditions are prohibited, it is recommended to follow the doctor’s instructions for the use of drugs. Codeine can selectively inhibit the cough center of the medulla oblongata, so as to play a role in suppressing cough. It can also produce sedative and analgesic effects. It can be used for the treatment of frequent severe cough, more than moderate pain, for local anesthesia or general anesthesia under the role of sedation. For cases such as thick sputum that is not easy to cough up, it is not recommended to use codeine tablets alone. It is contraindicated in the case of hypersensitivity to the components of the drug, breastfeeding women, children younger than 12 years. Drowsiness, dizziness, headache, shortness of breath, nausea, constipation and other side effects may occur during the course of taking codeine, and long-term use of codeine has a certain degree of addiction, it is recommended to use the drug under the guidance of a doctor. Codeine is a prescription drug, the use of which should be in accordance with medical advice, do not take the drug on your own.