How many azithromycin tablets should be taken at once?

Generally, the number of azithromycin tablets to take depends on the patient's age, weight, and condition. The usual adult dose is 1–2 tablets, while pediatric doses must be calculated according to body weight, following medical advice or the drug’s instructions. If in doubt, it is recommended to consult a healthcare provider in advance. Detailed information is as follows:

For adults treating respiratory or urinary tract infections caused by susceptible bacteria, if taking 0.25-gram azithromycin tablets, the usual initial dose is 2 tablets, followed by 1 tablet daily for 3–5 days. For formulations with a 0.5-gram strength, typically 1 tablet per day is sufficient. Dosage adjustments should be made based on the severity of infection and physician guidance; do not alter the dose arbitrarily.

Pediatric dosing must be strictly calculated by weight, generally 10 mg per kilogram of body weight per day, administered once daily for 3–5 days. Due to significant weight differences among children of various ages, dosage varies accordingly. A doctor must determine the appropriate regimen based on the child’s specific condition and weight. Parents should never use adult dosages for children, to avoid underdosing or overdose.

Before taking azithromycin, confirm there is no history of drug allergy. Use only the recommended dose and duration—do not extend treatment without medical advice. If gastrointestinal discomfort such as nausea or diarrhea, or allergic reactions such as rash occur during treatment, discontinue the medication immediately and seek medical attention. Also, avoid taking other medications that may interact with azithromycin to ensure safe and effective treatment.