Composition of isoflavonoids and chromanols and use of them as immunomodulators and as inhibitors of T-cell or T-lymphocyte proliferation. Treatment of disorders involving abnormal proliferation or activity of T cells. Formula (I) where A is hydrogen or optionally substituted phenyl and R1 represents hydroxy, alkoxy, halo or an ester and R2-R8 represent hydogen, hydroxy, alkyl etc.
