Azithromycin has a long half-life and needs to be taken at intervals of 24 hours, and should be used reasonably under medical supervision. Azithromycin instructions point out that the blood elimination half-life of this product is 35 to 48 hours, the instructions point out that the drug is used once a day, so you need to take Azithromycin 24 hours apart. Azithromycin can be used for respiratory tract infections, ear, nose and throat infections, urinary tract and genital infections, and skin and soft tissue infections caused by sensitive pathogens. Adverse reactions to this product may include nausea, vomiting, abdominal pain, diarrhea, rash, elevated aminotransaminases, and elevated alkaline phosphatase. The drug is contraindicated in persons with hypersensitivity to azithromycin, or other macrolides, cholestatic jaundice, and history of hepatic insufficiency. It should be used appropriately and in accordance with medical advice.