I took for seven days then went off it and still had symptoms of a UTI or prsotatitis. My GP gave me another 21 day supply. Am half way thru and still feel poorly. Cramps, bladder throbbing, bad pain in one knee , generally tired, irritable. I think I'll finish 14 days abd then quit it. Told my doctor who encouraged me to take it until I see Urologist ?? Don't know what to do !!!!!!!!!!!!!!!