Topical ophthalmic or otic solution formulations containing moxifloxacin hydrochloride and dexamethasone phosphate

1. A method of treating an otic infection comprising topically administering to the ear a solution composition consisting essentially of

a) 0.545% (w/v) moxifloxacin hydrochloride;

b) 0.11% (w/v) dexamethasone sodium phosphate;

c) 0.01% (w/v) edetate disodium;

d) 0.5-0.75% (w/v) sodium chloride;

e) 0.3% (w/v) boric acid;

f) 0.01% (w/v) benzalkonium chloride;

g) 0.05% (w/v) tyloxapol;

h) NaOH or HCl in an amount sufficient to cause the composition to have a pH from 7.8-8.0; and

i) water.