BYANNLI™ (olanzapine and samidorphan) is a prescription medication used in adults for the treatment of schizophrenia and bipolar I disorder. It combines olanzapine, an atypical antipsychotic known to affect certain substances in the brain, with samidorphan, which is intended to mitigate some of the weight gain commonly associated with olanzapine. BYANNLI is designed to provide the therapeutic benefits of olanzapine while addressing one of its significant side effects, offering a new option for patients managing these complex conditions. As with any medication, it is important to use BYANNLI under the guidance of a healthcare provider, who can evaluate its suitability for a patient's specific medical needs and conditions.