Are you a Doc? You look like one...I never took the F because Doc also has me on KETEK(also bad for Liver) for Lymes and he suspected I had some Fungal problems, thought that was rather bold of him...I will wait for Fungal Serology test before I consider taking it. He did give me A-BART because I suggested to him my Lymes Co-infection symptoms seemed more similar to Bartellona(sp?) than the Babesia(chronic) he said I had, he told me my Babesia was cured from 3 weeks of Alinia-I doubt it. But Man, has the A-BART caused all my symptoms to disappear-truly amazing for what I have gone through the last 6 years!