It is best to take the Zmax® extended-release oral suspension on an empty stomach or at least 1 hour before or 2 hours after a meal. If your child does not use all of the medicine in the bottle, throw it away after you give the dose. In May 2024, Mylan (Viatris) discontinued azithromycin oral powder for suspension in 1 gram packets. Pfizer discontinued Zithromax oral powder for suspension 1 gram packets in 3 count in July 2025. 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. DIRECTIONS FOR ADMINISTRATION OF Azithromycin for oral suspension in the single dose packet (1 g) The entire contents of the packet should be mixed thoroughly with two ounces (approximately 60 mL) of water. Find drug information for Azithromycin on CVS.com, including related drug classes, side effects, dosage, and answers to frequently asked questions. Azithromycin is known as a macrolide antibiotic. It works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections. McKesson Item 347079 Zithromax® Azithromycin 1 Gram Oral Powder for Suspension 10 Packets Easy-to-read patient leaflet for Azithromycin Single-Dose Packet. Includes indications, proper use, special instructions, precautions, and possible side effects. Mix entire contents of packet thoroughly with 60mL of water. Drink entire contents immediately; add an additional 2oz of water, mix, and drink to assure complete consumption of dosage. 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..