Quetiapine is an antipsychotic medication primarily used to treat conditions such as schizophrenia, bipolar disorder, and major depressive disorder. It works by affecting certain neurotransmitters in the brain, particularly serotonin and dopamine, which helps to stabilize mood and reduce symptoms of psychosis. This medication is available in various forms, including tablets and extended-release formulations. Common side effects may include drowsiness, dizziness, and dry mouth. It is important for patients to follow their healthcare provider's instructions and report any unusual symptoms while taking Quetiapine.