Zathrin 100 Readymix Oral Suspension contains Azithromycin 100mg/5ml, a macrolide antibiotic effective against a broad spectrum of bacterial infections. It is indicated for the treatment of respiratory tract infections, skin and soft tissue infections, otitis media, and sexually transmitted infections caused by susceptible strains of bacteria. Azithromycin works by inhibiting bacterial protein synthesis, thereby preventing bacterial growth and replication. The ready-to-use oral suspension formulation ensures accurate dosing and ease of administration, particularly suitable for pediatric and geriatric patients who may have difficulty swallowing tablets. Zathrin 100 is typically administered once daily due to its prolonged half-life, improving patient compliance. The suspension should be shaken well before use and dosed according to the prescribing physician’s recommendations based on the patient’s age, weight, and infection severity. Common adverse effects may include gastrointestinal disturbances such as nausea, vomiting, diarrhea, and abdominal pain. Hypersensitivity reactions, although rare, require immediate medical attention. Caution is advised in patients with hepatic or renal impairment, and concomitant use with other QT-prolonging agents should be avoided. Zathrin 100 Readymix Oral Suspension should be stored at controlled room temperature and protected from light. It is essential to complete the full prescribed course to prevent antibiotic resistance.