Group Pharmaceuticals Ltd. Manufactures Anti-plaque and Anti-microbial Oral Rinse. Group Pharmaceuticals Ltd. Is the manufacturer of pharmaceutical formulations. Anti-plaque and Anti-microbial Oral Rinse, under brand name of Guard-OR, comes with 0.2% w/v chlorhexidine gluconate, 0.2% w/v sodium fluoride, 0.09% w/v zinc chloride, 0.3% w/v triclosan xylitol with 110 ml packing etc.