text: <unk> (topical) is an antibacterial cleansing agent that is FDA approved for the treatment of gingivitis, periodontitis, skin cleansing procedure. Common adverse reactions include staining of the teeth and other oral surfaces, calculus formation, an alteration in taste perception,headache and anaphylaxis.   Common adverse reactions include headache and anaphylaxis.
option_0: Chlorhexidine gluconate 
option_1: Sodium hypochlorite
option_2: Epichlorohydrin
option_3: Tefluthrin
option_4: Potassium hydroxide
option_5: Benzethonium chloride
option_6: Gutta-percha
option_7: Tolmetin