I had my prostate removed n 1999 and had a very slow rising PSA but four months ago it went from the steady 3.5 to 5.5. I took Quercetin Plus (prostasol) from Mexico. four pills a day for four weeks and just had the PSA done which came out to 0.0. The Dr. had it done again the next day incase there was an error and again it is 0.0. So now he is sending it to Salt Lake to see if something in the pills block the PSA reading. I have read about people using this with success...does anyone know if it masks the PSA reading? Thank you