Hi Jaka,
The common dosage for severe infections seems to be Tabl. 750 mg/day.
http://www.rxlist.com/levaquin-drug/...ons-dosage.htm
You know it is very important that we get enough fluid - that will have a positive effect on the infection too. Perhaps she could try to drink more so she doesn't have to receive fluid IV?
Kind regards
Birgitta-A