CHLORHEXIDINE (klor HEX i deen) treats a bacterial gum disease (gingivitis). It works by killing or preventing the growth of bacteria, which helps to reduce inflammation of your gums. This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

Chlorhexidine gluconate is a prescription germicidal mouthwash that decreases bacteria in your mouth. A 2017 study suggests chlorhexidine is the most effective antiseptic mouthwash to date..