**Study on Valbenazine for Tardive Dyskinesia (TD)** This study investigates how well *valbenazine*, a medication, works for people with *tardive dyskinesia* (TD), a condition causing involuntary movements often due to long-term use of certain psychiatric medications. The study will look at how patients and doctors report changes in quality of life and daily function over a period of up to 24 weeks. **Key Points:** - **Duration:** Up to 24 weeks of treatment with valbenazine. - **Eligibility:** Participants must be at least 18 years old, diagnosed with disorders like schizophrenia, bipolar disorder, or major depressive disorder, and have stable medication doses. - **Exclusions:** Those with other significant movement disorders or unstable medical conditions cannot participate. Valbenazine aims to help reduce the symptoms of TD and improve life quality. If you or someone you know meets the eligibility criteria and is interested, participating might provide valuable insights into managing this condition. Always consult with your healthcare provider before making decisions about study participation.