Atypical antipsychotics treat certain mental health conditions, such as schizophrenia and bipolar disorder. They help balance mood and behavior by altering the activity of certain chemicals in your brain. Atypical antipsychotics come in different forms, including oral pills and injections. Common examples include aripiprazole (Abilify), quetiapine (Seroquel), and olanzapine (Zyprexa).