the second study , which was a double-blind forced choice comparison of two different formulations against placebo and 1 % naphazoline , showed from assessments of the degree of ocular discomfort and hyperaemia that oxymetazoline was well tolerated and the subjects preferred oxymetazoline in a boric acid rather than in a phosphate solution .
C0027373
naphazoline
C0020452
hyperaemia