(Vetoquinol) Surolan Otic Suspension is used for the treatment of canine otitis externa caused by susceptible strains of yeast and bacteria in dogs. Each ml of Surolan contains 23 mg miconazole nitrate, 0.5293 mg polymyxin B sulfate and 5 mg prednisolone acetate. The external ear should be thoroughly cleaned and dried before treatment. Instill 5 drops of Surolan twice daily into the ear canal and massage the ear. Therapy with Surolan Otic Suspension should continue for 7 consecutive days. Miconazole nitrate, polymyxin B sulfate and prednisolone acetate.