Antibiotics are used to treat or prevent bacterial infections, [36] and sometimes protozoan infections. (Metronidazole is effective against a number of parasitic diseases).

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 …

Dec 28, 2025 · 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 …

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 …

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 …

Antibiotics treat only some infections caused by bacteria – and none caused by viruses. Most often, antibiotics work by killing the targeted bacteria or by making it difficult for the bacteria...

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 …

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 …