The active ingredient of Oroba mouthwash is Chlorhexidine Gluconate. This rinse helps to control and kill the bacteria in your mouth that cause gum disease. Chlorhexidine has powerful antibacterial properties and can be especially helpful in maintaining a healthy mouth after a teeth deep cleaning procedure such as tooth scaling and root planning.Directions of use: Use as directed by the physician.Caution:Chlorhexidine mouthwash can cause brown stains on teeth because chlorhexidine has been shown to bind to both hard and soft tissues. So if your dentist prescribes a chlorhexidine wash for a short time while you're recovering from gum disease treatment try not to drink too much coffee tea red wine or consume any foods that may be likely stain your teeth.Use under medical supervision.