#$%^&*AU2016202760A120160519.pdf#####ABSTRACT The invention provides a composition containing hyaluronic acid (HA) or a phannaceuticaLiy-aceptable sal thereof preserved with a cationic preservative and 5 related methods. In one embodiment the pharmaceutically-acceptahe salt is sodium hyaluronate, In another embodiinrt, the cationic preservative includes benzalkoniur chloride (BAKg.