To feivel,
I think sammygol is making a mistake. I did a net search for Gentamycin otic. I couldn’t find any such drug in this country. I did find it for pets and in the country of Canada. What is commonly done is that clinicians prescribe Gentamycin eye drops for the ear. My instructor said -you can use opthalmic drops in the ear, but not vice-versa, because otic gtts. aren’t sterile.