(also known as second-generation antipsychotics): Atypical antipsychotic medications, are a class of drugs used primarily to treat psychotic disorders such as schizophrenia and bipolar disorder. Unlike older, typical antipsychotics, atypical antipsychotics have a different pharmacological profile and are associated with a lower risk of certain side effects, such as involuntary muscle contractions, stiff muscles, and tremors.  

They work by blocking dopamine receptors in the brain, as well as serotonin receptors, which can help alleviate symptoms of psychosis and stabilize mood. Atypical antipsychotics are also sometimes prescribed for other conditions, such as major depressive disorder, anxiety disorders, and certain behavioral disturbances. Examples of atypical antipsychotic medications include risperidone, olanzapine, quetiapine, aripiprazole, and clozapine.