Hello,
I have a history of UTIs due to a fistula between my colon and bladder. (My weight is about 145 kg, previously has been 188 kg, with a length of 170cm) It started in 2006, I did get nitrofurantoin, but I got only more ill, till I even got over 41 degree fever and an emergency-doctor then prescribed ciprofloxacin which did help (this was in Holland). Since 2008 we are in UK and I have been under treatment at St George, London, till 2010.