Amoxicillin is a type of antibiotic medication that is used to treat bacterial infections. Its mode of action is to interfere with the ability of bacteria to form cell walls, which are necessary for their survival and growth.
Amoxicillin belongs to the class of antibiotics known as beta-lactams, which work by binding to and inhibiting the activity of enzymes called penicillin-binding proteins (PBPs). PBPs are involved in the final steps of bacterial cell wall synthesis, and when they are inhibited, the bacteria are unable to build and maintain a strong cell wall. As a result, the bacteria become more susceptible to damage and death by the immune system or other antibiotics.
Amoxicillin is effective against a wide range of bacterial infections, including those caused by Streptococcus pneumoniae, Haemophilus influenzae, and Escherichia coli, among others. It is typically administered orally in the form of capsules or tablets, and it is absorbed into the bloodstream where it can reach the site of infection and begin fighting the bacteria.