Learn about the dosages of azithromycin , a generic antibiotic used to treat various bacterial infections. Find out the typical dosage for adults and children, the form and strengths of the tablet, and how to take it safely. Azithromycin 500 also comes in a liquid form known as Azithromycin syrup. This formulation contains 200mg of azithromycin per 5ml, making it easier for patients who have difficulties with swallowing tablets like children or elderly people. Azithromycin 500 Uses Azithromycin 500 mg is an antibiotic used to treat many bacterial infections. Azithromycin tablets USP, 250 mg are supplied as white or almost white, capsular shaped, film-coated tablets containing azithromycin dihydrate equivalent to 250 mg of azithromycin . Azithromycin ...