Try Chanca Piedra, I got my best results with that. Also a parasite cleanse (I recommend barefoot's dewormer), use it up in a couple weeks (~1 1/2 tbsp. per day) Prep for a couple weeks with both of those.
A couple days before the flush, start eating no fat! Only fruits and vegetables. If you have a juicer, drink plenty of juiced carrots (several pounds worth a day). Eat apples! Eat some bitter salad greens. I got my best results this way.
After you resume eating, continue to eat this way for a day or two. You may continue to see stones release.