Sofradex

Sofradex eye and ear drops contain dexamethasone, framycetin and gramicidin:

framycetin = neomycin B. Covers 

• Enterobacter cloacae: >16 μg/ml
• Escherichia coli: 1 μg/ml
• Proteus vulgaris: 0.25 μg/ml

and gramicidin is obtained from the soil bacterial species Bacillus brevis. Covers
 Gram-positive bacteria, except for the Gram-positive bacilli, and select Gram-negative organisms, such as Neisseria bacteria.