Cetrimonium, cetyl trimethylammonium, or hexadecyltrimethylammonium is a quaternary ammonium cation whose salts are used as antiseptics:
Cetrimonium bromide Cetrimonium chloride They have the ATC codes D08AJ02 (WHO) (as skin antiseptics) and R02AA17 (WHO) (as throat antiseptics).
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