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Updated August 28, 2008

Definition: Antibiotics are a class of medications used to treat infections caused by bacteria, fungi and parasites. They are not effective against viruses. Antibiotics work by killing or stopping the growth of bacteria that cause infections.


Augmentin (amoxicillin/clavulanic acid) is a penicillin antibiotic that is used to treat many different kinds of infections, including those of the ears, respiratory tract, and skin.

Biaxin XL (clarithromycin) is an antibiotic that may be used along with other antibiotics to treat the bacteria Helicobacter pylori that can cause peptic ulcers.

Neosporin Ophthalmic Solution (Gramicidin; Neomycin; Polymyxin B) is a combination of three antibiotics used to treat eye infections caused by bacteria.

To learn more about your antibiotic, use Drugs A to Z.

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