Clindamycin is a commonly used drug in clinical practice, also known as clindamycin and clindamycin, which mainly has a powerful antibacterial effect on Gram-positive bacteria and anaerobic bacteria. It is mainly used for the treatment of respiratory tract infections, infections of skin soft tissues, etc. The main contraindications are the following: First, it should not be used if allergic. Second, its metabolism is mainly through the liver. It should be used with caution or not used by people with liver disease, pregnant women, younger children (for example, 5 years old or under 4 years old, liver function may be underdeveloped), or in special stages. Third, clindamycin belongs to the macrolide class of drugs, macrolides can cause pseudomembranous enteritis, it is also obvious gastrointestinal reactions, such as nausea, vomiting, diarrhea, abdominal discomfort, etc. Therefore, patients with digestive system disorders, need to pay attention to it.