Novo-Trimel for URI?

[animalhugger]

all my rats have URI, and my vet that i co-op at gave me Novo-Trimel and the label says give one drop daily for 7-10 days to each rat. does this sound right? i heard other people using baytril. will this work better? could i get it at a drugstore maybe?

im pretty sure that they developed it when i kept them on a bedding called boxo. i switched over to aspen a couple weeks ago, because i like it batter and its cheaper. i clean their cage weekly, feed them lab blocks with some treats, have water available at all times, and play with them all the time. im not sure how they got it, i just want to get rid of it.