Azithromycin is a common antibiotic used for many infections, from throat bugs to pneumonia. Getting the dose right matters – too little may not cure the infection, too much can raise side‑effects. This guide shows you the typical doses for adults, children, and special situations, plus easy tips to take it safely.
For most infections, adults get a 500 mg tablet on the first day, followed by 250 mg once a day for the next four days. That 5‑day schedule works for bronchitis, sinus infections, and many skin problems. Some doctors prescribe a single 1 g dose for certain sexually transmitted infections; you take the whole pill at once and finish the course.
If you have liver trouble, the doctor may lower the dose to 250 mg daily for the whole five‑day period. Always follow the prescription label – don’t change the amount unless your doctor says so.
Children don’t get the same flat dose as adults. The usual rule is 10 mg per kilogram of body weight on day 1, then 5 mg/kg once a day for the next four days. For a kid who weighs 20 kg (about 44 lb), the first dose would be 200 mg, then 100 mg each day after.
Low‑weight infants may need a liquid formulation. The bottle will have a concentration (for example, 200 mg/5 ml), and the doctor will tell you how many milliliters to give. Using a proper syringe or medicine cup helps keep the dose accurate.
Never give a child an adult tablet unless the doctor explicitly tells you to split it and the tablet is scored for easy cutting.
People with kidney problems often need a lower daily dose – usually 250 mg a day for five days, but your doctor will set the exact amount based on test results.
If you miss a dose, take it as soon as you remember unless it’s almost time for the next dose. Don’t double‑up – a double dose can cause stomach upset.
Take azithromycin with or without food. Some folks find it easier on an empty stomach, while others avoid nausea by taking it with a light meal.
Complete the full course, even if you feel better after a couple of days. Stopping early can let the infection come back and may make the bacteria resistant.
Common side‑effects include mild stomach pain, diarrhea, or a metallic taste. If you notice a rash, trouble breathing, or severe stomach pain, call a doctor right away.
Store tablets at room temperature, away from moisture and heat. Keep liquid forms in the refrigerator if the label says so, and toss any medication that’s past its expiration date.
Remember, the exact dose depends on the infection type, your health, and other medicines you take. When in doubt, ask your pharmacist or doctor for clarification before you start the pack.
By following these simple rules, you’ll get the most benefit from azithromycin while keeping side‑effects to a minimum. Stay safe and finish the course!
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