Acetylspiramycin tablets belong to the class of macrolide antibacterial drugs, commonly known as erythromycin antibacterial drugs. It is mainly used to treat mild cases of respiratory tract, skin and soft tissue, eye, ear, nose, throat and oral cavity infections caused by positive cocci. Such as pharyngitis, tonsillitis, sinusitis, otitis media, periodontitis, acute bronchitis, acute exacerbation of chronic bronchitis, pneumonia, nongonococcal urethritis and soft tissue skin infections, can also be used for cryptosporidiosis, or as the treatment of toxoplasmosis in women during pregnancy as the drug of choice. Its adverse reactions mainly include abdominal pain, nausea, vomiting and other gastrointestinal reactions, often occurring in large doses of the drug, the degree of most of the mild, after stopping the drug can disappear on their own. This product can penetrate into the placenta, so when used in pregnant women, the advantages and disadvantages should be fully weighed before deciding whether to use. This product should be used with caution in breastfeeding women, and breastfeeding should be suspended if application is necessary. The drug should be stored in a cool, dark and dry place in a tightly closed container and a doctor or pharmacist should be consulted before using the drug.