Isorhoifolin and vicenin II are main compounds of ethyl acetate fraction (EAcF) obtained from Erythrina velutina leaves, EAcF increases the cardiac contractile force by increasing the l-type calcium current and activating the adrenergic receptor pathway.

Paeoniflorin, a main component of Paeoniae Radix Alba, could be transformed into Paeoniflorin sulfite during sulfur-fumigation of Paeoniae Radix Alba.

(+)-Balanophonin exhibits marginal inhibition on the proliferation of OPM2 and RPMI-8226 cells.