Tardive dystonia not permanent The article says that tardive dystonia is permanent but I think it lessens over months years depending on its severity I myself have it from 5 weeks of 3 mg day risperidone it s been 9 months and the dystonia is significantly reduced in another 2 to 4 years there should be no sign of it But my dystonia was not severe I would imagine it could be practically permanent after a lengthier exposure to dopamine antagonists