<a target=_blank class=ftalternatingbarlinklarge href="http://en.wikipedia.org/wiki/Gentamycin">http://en.wikipedia.org/wiki/Gentamycin</a> if you want to learn more about it.
It's an IV antibiotic, i've never used it personally. But in terms of it works, that's a very individual thing. Some people have bacteria that are suseptable and some have bacteria that are resistant to aminoglycosides. That just depends on the bacteria that you're treating.