Cefazolin is a type of antibiotic that belongs to the cephalosporin class. It is commonly used to treat bacterial infections, particularly those caused by Staphylococcus and Streptococcus species. Cefazolin works by interfering with the bacteria's cell wall synthesis, ultimately leading to their destruction. This medication is often administered through an injection and is effective for various infections, including skin infections, respiratory tract infections, and urinary tract infections. It is important to use cefazolin as prescribed by a healthcare professional to ensure its effectiveness and reduce the risk of antibiotic resistance.