An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely …

Dec 6, 2025 · Antibiotics specifically treat infections caused by bacteria, such as Staph., Strep., or E. coli., and either kill the bacteria (bactericidal) or keep it from reproducing and growing …

5 days ago · Antibiotic, chemical substance produced by a living organism, generally a microorganism, that is detrimental to other microorganisms. Antibiotics came into worldwide …

Dec 16, 2025 · Antibiotics are medicines that are used to treat certain kinds of bacterial infections. They work to clear up infections either by killing bacteria or stopping their growth. Antibiotics …

Antibiotics are medications used to treat bacterial infections. They are not effective against viral infections and most other infections. Antibiotics either kill bacteria or stop them from …

Mar 13, 2024 · Antibiotics are medicines that help stop infections caused by bacteria. They do this by killing the bacteria or by keeping them from copying themselves or reproducing. The word …

Nov 21, 2025 · Antibiotics kill bacteria using different mechanisms depending on the antibiotic class. They only treat bacterial infections, not viruses like the common cold or flu. Taking …

The chart below lists some of the antibiotic classes used in the U.S. along with examples of the individual medicines your provider might prescribe. These are just a few of the many available …

Apr 17, 2023 · Antibiotics only treat certain bacterial infections, such as strep throat, urinary tract infections, and E. coli. You may not need to take antibiotics for some bacterial infections. For …

Apr 17, 2025 · Antibiotics work by killing bacteria and preventing them from multiplying. Common antibiotics include penicillin and amoxicillin. Doctors may also use azithromycin and …