Fig. 2
Combination indices (CI) of two compounds against adults and juveniles of S. japonicum in vitro. CI were obtained from the combination of PZQ and DW-3-15 against male (a), female (b), and juvenile (c) worms of S. japonicum after 72 h of incubation in vitro. Synergism is marked in gray. PDa = 50 μM PZQ combined with 50 μM DW-3-15; PDb = 100 μM PZQ combined with 100 μM DW-3-15