<<Disclaimer: Verify this information before applying it to your situation.>>
Dapsone does not treat celiac disease, in fact it has no effect on the
small intestinal damage at all.
Dapsone IS used to relieve the itching and suppress the skin rash from
DH and has been used for this purpose for may years. It does not block
the intestinal damage from gluten that occurs in DH.
Joe Murray
University of Iowa