Ketomin tablets, also known as dioxepin hydrochloride tablets, are a kind of medicine for cough and can also be used to treat allergic diseases, such as allergic urticaria, allergic asthma, etc. During the use of Ketomin tablets, it should be noted that they are mainly used to treat irritating dry cough. In case of cough with phlegm, it is recommended to expectorate the phlegm first and then to stop the cough. If cough with phlegm is used first, it may cause accidents due to obstruction of the respiratory tract. During the use of cough medicine, the main adverse effects are dizziness, fatigue, drowsiness, etc. Therefore, it is recommended not to drive, work at height, or engage in delicate work during the use of the medicine, and it is best to use this medicine at night before going to bed.