Fig. 3From: Natural products from Zanthoxylum heitzii with potent activity against the malaria parasiteThe slow acting characteristics of dihydronitidine. a Dose–response curves for P. falciparum (3D7) in 48 h in vitro drug assays showing unusual response to dihydronitidine. b Response of parasites to increasing time of dihydronitidine exposure. Maximum efficacy is reached at 72 h, with no improvement with longer exposuresBack to article page