aripiprazole lauroxil is injected into the arm or buttocks of a patient by a health care professional once every four to six weeks. aripiprazole lauroxil is a longer-lasting and injectable version of the schizophrenia pill aripiprazole, which means that the treatment is available in two doses. aripiprazole lauroxil, along with other drugs in its family, are not approved for treatment of elderly patients with dementia-related psychosis.