Cephalosporin is a class of antibiotics used to treat a variety of bacterial infections. They work by disrupting the formation of the bacterial cell wall, which ultimately leads to the death of the bacteria. Cephalosporins are often prescribed for infections such as pneumonia, skin infections, and urinary tract infections. This group of antibiotics is divided into generations, with each generation having a broader spectrum of activity against different types of bacteria. Common examples include cephalexin and ceftriaxone. While generally safe, cephalosporins can cause side effects and may not be suitable for everyone, especially those with allergies to penicillin.