PHAR, LLC, in collaboration with Bristol-Myers Squibb and Otsuka Pharmaceutical Development & Commercialization, Inc, conducted a study to evaluate how antipsychotic medication half-life affects the risk of psychiatric hospital admission and emergency department (ED) visits for patients with schizophrenia. The study found that patients taking medication with a longer half-life had fewer comorbid mental health conditions, took fewer psychiatric medications, and had a lower risk of hospital admission and ED visits for mental disorders. The full study can be found in the January 2012 edition of the Journal of Medical Economics.