Cefoselis is a fourth-generation cephalosporin antibiotic primarily used as a broad-spectrum antibiotic in the treatment of various bacterial infections. It is effective against both Gram-positive and Gram-negative bacteria, making it a versatile option for combating infections in different parts of the body. It is often administered in hospital settings for severe infections such as sepsis, pneumonia, and complicated urinary tract infections. Cefoselis is particularly valuable in treating infections caused by multidrug-resistant bacteria, where other antibiotics may be ineffective. Its use is typically guided by susceptibility testing to ensure targeted and effective treatment. Additionally, it is sometimes employed in surgical prophylaxis to prevent postoperative infections in high-risk patients.