Talk to Psychiatry on Psychiatrist

question is from psychiatrist.my sister has borderline personality disorder she is on lexotanil melatonin sertraline vepridone she has impulsive behavior mood swings when something annoys her she does physical fights,like person she likes if we don't credit them or ignore when they comes she insists us to welcome them and she likes mostly notorious people though she knows them that they are not good but still demand to give protocol entire family is disturbed,cognition is very poor.she don't accept to take new medicines because recently doctor has given her drug reaction injection when her psychiatrist added zolpidem and quesel to her treatment plus stopped lexotanil atonce whereas she is dependent on it.is there a single medicine that make her calm and peaceful and treat mood swings as she don't convince on taking larger number of medicines.