Blue Flag Cautions

Cautions:
" The fresh roots are toxic and should not be used internally, but a poultice of
     the raw rhizome is especially effective against staph sore. Only the dry root
     should be tincture. As a cathartic, two capsules of the ground root ( "00" size )
     or twenty drops of the tincture is an average dose." Ref. C p. 40   "Since the
     speed and mode of metabolization and excretion can be of critical importance
     in many substantial medical treatments, decreased or increased effects from
     such drugs may result from the accompanying use of Blue Flag. It is strong in
     effect and can be unpleasant if used in excess; therefore, its present use is
     almost always in combination with other herbs. " Ref. C p 40
   "This is a useful drug plant but in general should be used with care and
     preferably in combinations where less energetic plants form the bulk of a
     formula." Ref. C p.40   "Large doses cause nausea, vomiting and facial neuralgias.
     Handling the plant may cause dermatitis." Ref. D p.208