Easy-to-read patient leaflet for Azithromycin Tablets. Includes indications, proper use, special instructions, precautions, and possible side effects. Learn about azithromycin (Zithromax) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. Azithromycin may cause diarrhea, and in some cases it can be severe. It may occur 2 months or more after you stop using this medicine. Do not take any medicine to treat diarrhea without first checking with your doctor. Diarrhea medicines may make the diarrhea worse or make it last longer. Overview: Azithromycin is an antibiotic that is used to treat certain bacterial infections. It works by stopping certain types of bacteria from making proteins they need to grow and multiply. Azithromycin is an antibiotic that fights bacteria. Azithromycin is used to treat many different types of infections caused by bacteria, such as respiratory infections, skin infections, ear infections, eye infections, and sexually transmitted diseases. Azithromycin pills in Europe, with brand name Sumamed. Azithromycin, sold under the brand names Zithromax (in oral form) and Azasite (as an eye drop), is an antibiotic medication used to treat several bacterial infections. [9] Azithromycin is used to treat a variety of bacterial infections including ARDS, sinusitis, pneumonia, and acute bronchitis. Learn about side effects, drug interactions, dosages, warnings, and more. Azithromycin is in a class of medications called macrolide antibiotics. It works by stopping the growth of bacteria. Antibiotics such as azithromycin will not work for colds, flu, or other viral infections. Using antibiotics when they are not needed increases your risk of getting an infection later that resists antibiotic treatment. Azithromycin (Zithromax) is an inexpensive drug used to treat or prevent certain kinds of bacterial infections. It will not work for colds, flu, or other viral infections. This drug is more popular than other comparable drugs. It is available in brand and generic versions. Azithromycin oral tablet (Zithromax) is a prescription drug that's used to treat infections caused by bacteria. Learn about uses, dosage, and more.