Zithromax Dosage Guide – How Much Azithromycin Should You Take?
If you’ve been prescribed Zithromax, the biggest question is usually “how much should I take?” The answer depends on what you’re treating, your age, and sometimes your weight. Below you’ll get a straight‑forward rundown of the most common dosing schedules so you can follow your prescription without guessing.
Standard adult dosing for everyday infections
For most adult infections – like bronchitis, sinusitis, or skin infections – doctors use a five‑day regimen. You take 500 mg on day 1 (usually two 250 mg tablets) and then 250 mg once daily on days 2 through 5. This “single‑large‑dose‑then‑smaller‑dose” plan works because azithromycin stays in the body for a long time.
If you’re treating a sexually transmitted infection such as chlamydia, the dose is simpler: 1 g (two 500 mg tablets) taken once. No follow‑up pills are needed, and most patients feel better within a few days.
Kids, special cases and safety tips
Children get a weight‑based dose, typically 10 mg per kilogram of body weight on day 1, then 5 mg/kg once daily for the next four days. For example, a 30‑kg kid would take 300 mg (about one 250 mg tablet plus half another) on day 1 and 150 mg each day thereafter.
Some infections – like pneumonia or certain ear infections – may require a longer course of 3 days at 500 mg daily for adults, or 10 mg/kg once daily for kids. Always follow the exact schedule your doctor writes; shortening the course can let bacteria bounce back.
Avoid taking Zithromax with antacids that contain aluminum or magnesium within two hours of each dose, as they can lower absorption. If you miss a dose, take it as soon as you remember unless it’s almost time for the next one – then just skip the missed pill and continue normally.
Common side effects include mild stomach upset, diarrhea, or a brief change in taste. These usually fade once the medication is finished. Call your doctor if you notice severe rash, fast heartbeat, or persistent vomiting.
Remember, Zithromax is a powerful antibiotic. Use it only for the infection your health professional diagnosed and never share leftovers with friends or family. Proper dosing not only helps you recover faster but also reduces the risk of antibiotic resistance.
