Maxicef O 200mg Tablet contains Cefixime 200mg, a third-generation cephalosporin antibiotic effective against a broad spectrum of bacterial infections. Cefixime acts by inhibiting bacterial cell wall synthesis, leading to cell lysis and death. This medication is indicated for the treatment of various infections caused by susceptible strains of bacteria, including uncomplicated urinary tract infections, acute otitis media, pharyngitis, tonsillitis, bronchitis, and certain types of gonorrhea. Maxicef O is well absorbed orally, achieving effective serum concentrations that facilitate bacterial eradication. It is generally administered once or twice daily, depending on the severity and type of infection, with dosage adjustments recommended for patients with renal impairment. Common side effects may include gastrointestinal disturbances such as diarrhea, nausea, abdominal pain, and allergic reactions like rash or pruritus. Hypersensitivity to cephalosporins or penicillins is a contraindication. Caution is advised in patients with a history of gastrointestinal disease, particularly colitis. Maxicef O should be used under medical supervision, ensuring adherence to prescribed dosage and duration to prevent antibiotic resistance. It is essential to complete the full course of therapy even if symptoms improve earlier.