The results showed that IOP‐A could significantly reduce liver and spleen indexes, limit the fatty degeneration of the liver, lower TC, TG, LDL‐C, AST, and ALT levels, increase HDL‐C levels, and up‐regulate CYP7A1 and SR‐B1 protein expression in the liver of hyperlipidemic rats. The gene discussed is GPT; the disease is medical procedure.