I have not used it, but have read a lot about it, but have not found a single person that has tried it like in forums or groups, Yahoo has some excellent groups on Oleander for cancer and budwig diet ect.
My wife has used Beta Glucan a similar immune system enhancing product as this, to great benefit,also RH 10 Ultra is the same type of product but more can be found supporting it and also Mycetoblend, I know a friend whose Homeopathic Dr. suggested it's use as the same type of product, so my suggestion is search out 1 of the 3 I listed since they are more well known and I have found many people that support them.