Ceftriaxone is a broad-spectrum antibiotic used to treat various bacterial infections. It belongs to the class of drugs known as cephalosporins and works by inhibiting the growth of bacteria. This medication is often administered through an injection and is effective against infections in the lungs, skin, and urinary tract, among others. Ceftriaxone is commonly prescribed for serious infections, including those caused by Streptococcus pneumoniae and Escherichia coli. It is important to use this antibiotic only under the guidance of a healthcare professional to ensure its effectiveness and to reduce the risk of antibiotic resistance.