 Study A: An open-label, prospective trial of the efficacy and safety of risperidone in the treatment of BPD.The study is 8 weeks in duration, with a screening visit and follow-up visits at the end of Weeks 1,2,3,4,6, and 8. 20 female patients, 19 years or older will be recruited. A full medical and psychiatric history will be taken and a physical exam will be performed by a sstudy physician. A psychosocial assessment will be conducted during the screen. 