The company is best known for its drug, Ingrezza. Ingrezza treats tardive dyskinesia and chorea associated with Huntington's disease. Both are movement disorders. But in the fourth quarter ...

As with other drugs, Ingrezza (valbenazine) can cause side effects, such as drowsiness and parkinsonism. If you are unable to tolerate Ingrezza’s side effects, talk with your doctor or ...