Sal enhanced the effects of OXA on HCC. (A) Molecular formula of salidroside (Sal). (B) Expression of the proliferating cell nuclear antigen (PCNA) in different groups. (C) Percentage of dead cells in different groups was determined by the Live/Dead Fixable Dead Cell Stain Kits. (D) Inhibitory effects of Sal, OXA, or Sal combined with OXA on PLC/PRF/5, HepG2, and SMMC-7721 cells for 48 h. Error bars represent the standard deviation of experiments performed in triplicate (*P < .05, **P < .01).