Anthraquinones are described which are antihelminthic and in particular,
are useful in compositions for inhibiting Schistosoma sp. in vitro or in
vivo. The preferred anthraquinones have the formula:
##STR1##
wherein R1, R2, R3, and R4 are
each hydrogen, hydroxy, halogen, alkyl, substituted alkyl, alkene, substituted
alkene, alkyne, aryl, substituted aryl, cyclic, substituted cyclic, acid group,
carbohydrate, or combination thereof, R is a group containing 1 to 12 carbons such
as methyl, alkyl, substituted alkyl, aldehyde, hydroxy, hydroxymethyl, acid group,
carbohydrate, or combination thereof, and the halogen is I, F, Br, or Cl.