MedlinePlus: Chlorhexidine (Dental): Provides information on usage, precautions, side effects and brand names when available. Data provided by various government agencies and health-related organizations.Periochip: Full prescribing information from RxList.PerioGard (Chlorhexidine) - HIVDent.org: Indicated as an oral rinse for use between dental visits as part of a professional program for the treatment of gingivitis.