Qucertin Plus is available from Seacoast Vitamins and ProstaSol is from Holland which is difficult to get in the US due to FDA.
My husband too Qucertin Plus for four weeks and psa dropped from 5.5 to 0.0 and testosterone from 313 to 6. He had prostate removed in 1999 but last four months the psa was rising quickly.
We are going to see Dr. Pfeiffer in Switzerland next week for a two week protocol and will let you know what we learn. He is involved with the ProstaSol from Hollnad.
Also, check out Dr. Donsbach on his website and you can call or email your questions to him and he will respond on his weekly radio show. If you miss the show you can hear it on his website by going to archive shows....you can also look up others with PC and mets and prostasol experiences...it is amazing. Good Luck and God Bless