Azithromycin is divided into human and child dosages, with a general maximum amount of 1000mg to 1500mg for adults and a maximum amount calculated at 30mg/kg for children. Azithromycin is a macrolide antibacterial drug that can target acute pharyngitis, acute tonsillitis, sinusitis, otitis media, acute bronchitis and pneumonia, and urethritis caused by Streptococcus pyogenes, Streptococcus pneumoniae, Haemophilus influenzae, as well as Mycoplasma pneumoniae and Chlamydia trachomatis. Azithromycin is prone to adverse reactions of gastrointestinal irritation such as causing vomiting, diarrhea, and stomach upset, and is recommended to be taken 1 hour before or 2 hours after meals. The total dose for adults is 1,000mg to 1,500mg depending on the treatment modality, and for children, the total dose is usually 30mg/kg taken orally over 3 to 5 days. Note that Azithromycin is contraindicated in patients who develop cholestatic jaundice or hepatic insufficiency after use. Azithromycin dosage choice is not fixed, adults and children dosage is different, it is recommended that under the guidance of a physician for the cause of the treatment, to avoid blind use of drugs to produce serious consequences.