Chlorhexidine mouth rinse is an antibacterial that can be used as an antiseptic that provides protection to combat bacterial infections. Oral rinse Gluconate 12% formula is a preventive prescribed for gingivitis. Chlorhexidine can ease swelling, bleeding and redness in the gums as well as reduce plaque and bacteria. This 0.12% concentration is used in dental offices as an oral rinse solution. The 16 fluid ounce bottle (473 ml) is made with a child-resistant cap for safe dispensing.