ARIPIPRAZOLE treats schizophrenia and bipolar disorder. It works by balancing the levels of dopamine and serotonin in your brain, substances that help regulate mood, behaviors, and thoughts. It belongs to a group of medications called antipsychotics. Antipsychotics can be used to treat several kinds of mental health conditions. With the Patient Assistance Program from Alkermes, you can receive your medication at no cost for up to 12 months.