Tobrex (Tobramycin) is an aminoglycoside antibiotic. Tobrex is a sterile ophthalmic preparation that is used specifically for treating external bacterial infections of the eye. Each gm of Tobrex ointment contains 3mg of tobramycin.
Vetropolycin (bacitracin zinc, neomycin sulfate, polymixin B sulfate) is a sterile opthalmic ointment used to treat susceptible superficial bacterial infections of the eyelids and conjunctiva.