Debbie Sue, I called a very nice Dr. (free) on Crohn's.net
this week and asked her your question--whether Primal Defense
is strong enough for parasites. She said probably not and
suggested two other products to me. I don't remember the
names of them. I personally am rotating different parasite
killers and finishing up a two week program on Fungal
Defense. I am left extremely constipated, though, so if
you have a problem that way, be careful with the Primal
Defense or Fungal Defense. They seem to help many but the
constipation is a serious problem.