Patients in treatment group were treated with capsules of extraction of polygonum cuspidatum and hawthorn , 1 pill po , bid ( dosage of administration : polygonum cuspidatum extraction 5.33 mg x kg ( -1 ) x d ( -1 ) , hawthorn extraction 5.0 mg x kg ( -1 ) x d ( -1 ) ) ; patients in control group were treated with lovastatin 20 mg po , qd ( dosage of administration : 0.33 mg x kg ( -1 ) x d ( -1 ) ) .