http://www.medications.com/effect/view/39013 17/2/09 I was prescribed Keflex 500mg 3 times a day (every 8 hours) last week after being told that the symptoms I had were possibly due to a kidney infection and to take this over the weekend & ring for the results of the lab test on the urine sample give Sat, 14 Mar 2009 21:36:01 -0400 http://www.medications.com/effect/view/39013?item=18021 Its a good thing he didn't prescribe Levaquin. Its like $90 for 8 pills. http://www.medications.com/effect/view/39013?item=18021