What is Tardive Dyskinesia (TD)?
Tardive Dyskinesia is a hyperkinetic movement disorder caused by dopamine receptor-blocking drugs.
According to current criteria, it is possible to make the diagnosis of Tardive Dyskinesia when the hyperkinesia develops during treatment with neuroleptics or within 6 months of their discontinuation and persists for at least 1 month after stopping all neuroleptic agents.
It is estimated that 20% of patients exposed to neuroleptics develop Tardive Dyskinesia, but the values range from 13% to 49%.
Severe Tardive Dyskinesia seems to be more common in young males and elderly females.