Symptoms may persist after medication has been discontinued
Tardive Dyskinesia Prognosis
The long-term prognosis for Tardive Dyskinesia varies considerably from patient to patient. Some people return to normal after they stop taking the drug which caused the Tardive Dyskinesia (these people may show no symptoms that they ever had Tardive Dyskinesia). Other individuals are not so lucky.
Older people are both more prone to develop Tardive Dyskinesia and less likely to recover from it. People over 60 may develop the disorder after a short exposure to medication, whereas younger people generally develop Tardive Dyskinesia after three months of exposure or longer.
Several studies have found that people less than 60 years old are three times more likely to spontaneously recover than people over the age of 60 are. Older people are also more likely to develop more severe symptoms. Some researchers believe that older people are more subject to Tardive Dyskinesia and less likely to spontaneously recover because their brains lack sufficient neurons to provide “back-up” for the damaged areas. Younger people have more neurons available and thus their brains may be better able to function after being damaged by a Tardive Dyskinesia-induced medication.