ingredient information
Cetylpyridinium Chloride
Cetylpyridinium chloride is a cationic quaternary ammonium compound in some types of mouthwash such as Crest Pro-Health®, Scope®, Reach ACT®, Cepacol®, Viadent®, Oasis®, Dr. Fresh®, swish®, BreathRX®, and BetaCell®, toothpastes such as Crest Sensitivity® and Crest Plus Scope®, Cepacol® lozenges and throat sprays, anti-snore throat sprays (Breathe Right®, Rite Aid, CVS, Walgreens, etc.), Oasis® moisturizing mouth spray, BreathRX® breath spray, and SinoFresh® and Ayr No-Drip Sinus® nasal sprays. It is an antiseptic that kills bacteria and other microorganisms. It has been shown to be effective in preventing dental plaque and reducing gingivitis. It has also been used as an ingredient in certain pesticides. However, this ingredient has also been shown (according to WebMD,[1] eMedicine,[2] and and reviews of Crest Pro-Health® rinse product) to cause brown stains between the teeth.