Antibiotics Home > Flagyl

Flagyl is a prescription drug used for treating certain types of bacterial and parasitic infections, including some sexually transmitted infections. The antibiotic works to kill bacteria and parasites by entering the bacterial or parasite cell and causing a reaction that produces free radicals (molecules that can damage and destroy cells). Flagyl is available in the form of short-acting tablets, long-acting tablets, capsules, and an injection.

What Is Flagyl?

Flagyl® (metronidazole) is a prescription antibiotic approved to treat a variety of different infections, including certain sexually transmitted infections. It is especially useful for treating infections caused by parasites and anaerobic bacteria (certain bacteria that do not require oxygen to survive).
 
(Click Flagyl Uses for more information on what the medication is used for, including possible off-label uses.)
 

Who Makes It?

Brand-name Flagyl is made by Pfizer, Inc. Generic versions of the medication are made by various different manufacturers.
 

How Does It Work?

In order to work, Flagyl must enter the bacterial or parasite cell. The cells then cause a chemical reaction to occur with the medication. This reaction produces free radicals, molecules that can damage and destroy cells. This is presumably how Flagyl works to kill bacteria or parasites.
 
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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