Beta-lactam antibiotics are a class of medications used to treat bacterial infections. They work by interfering with the formation of the bacterial cell wall, which is essential for the bacteria's survival. This action helps to kill or inhibit the growth of bacteria, making these antibiotics effective against a wide range of infections. Common examples of beta-lactam antibiotics include penicillin, amoxicillin, and cephalosporins. These antibiotics are often prescribed for conditions like strep throat, pneumonia, and urinary tract infections. However, some bacteria have developed resistance to these drugs, making it important for healthcare providers to choose the appropriate antibiotic for treatment.