Chlorhexidine gluconate is a medication used to treat gingivitis, an inflammation of your gums. Symptoms of gingivitis include redness, bleeding and swelling of your gums. According to Drugs.com, chlorhexidine gluconate is a germicidal mouthwash that decreases bacteria in your mouth. Typically, you will rinse your mouth two times a day for about 30 seconds.
Common Side Effects
According to Drugs.com, common side effects include dry mouth, mouth irritation and changes in your sense of taste. These side effects are not life threatening, but inform your physician when chlorhexidine gluconate's common side effects last for two to three days. He may discontinue this medication and prescribe you another germicidal mouthwash.
Serious Side Effects
The National Library of Medicine says that chlorhexidine gluconate can cause supragingival calculus. This refers to a condition in which calcified mineral depositis form at the base of your teeth. Typically, your doctor can prescribe a prophylactic medication to prevent supragingival calculus. Also, chlorhexidine gluconate can cause staining of your teeth or the surface of your tongue. This medication can also increase your risk for apthous ulcers, geographic tongue, paresthesia and a mucocele. Apthous ulcers are white, painful, circular irritations that occur in your mouth. Geographic tongue refers to irregular patches on the surfaces of your tongue. Paresthesia refers to numbness and tingling, while mucoceles refers to mucus-filled cysts in your mouth. Inform your physician when you have these side effects.
Additional Concerns
Do not take chlorhexidine gluconate if you are allergic to it. Signs of an allergic reaction include trouble breathing, hives and swelling (edema) of your face, tongue or throat.
Drugs.com says that it is unclear whether chlorhexidine gluconate can harm your baby or pass into your breast milk. Tell your doctor if you are pregnant or plan to breastfeed.


