Since my last post I have changed to taking Tumorx Bloodroot in capsules. Theirs is 100% bloodroot and is very resonably priced. (Their number is: 229.365.7222. They're nice folks.)
When I take it I accompany it with either some calcium/magnesium powder in water and a capsule of pantothenic acid or some chicken or beef to help buffer it.
I rarely have any problem and I am currently taking 2 capsules 2 or 3 times a day.
I have found this to be a very powerful bloodcleanser/detoxifier.