AAbnormal and prolonged contraction of muscles of eyes, face, neck, limbs, or trunk developing in association with medication use
BInvoluntary movements (tardive dystonia: sustained/repetitive muscle contractions; tardive akathisia: subjective restlessness + repetitive movements) developing in association with neuroleptic use, persisting ≥4 weeks
Additional criteria
AB. Symptoms developed within a few days of starting or raising dose of medication, or reducing medication used to treat extrapyramidal symptoms
BB. Movements persist after neuroleptic dose reduction or discontinuation; or neuroleptic still required and symptoms are persistent
Key features
AA. Abnormal and prolonged contraction of muscles of eyes, face, neck, limbs, or trunk developing in association with medication use B. Symptoms developed within a few days of starting or raising dose of medication, or reducing medication used to treat extrapyramidal symptoms
BA. Involuntary movements (tardive dystonia: sustained/repetitive muscle contractions; tardive akathisia: subjective restlessness + repetitive movements) developing in association with neuroleptic use, persisting ≥4 weeks B. Movements persist after neuroleptic dose reduction or discontinuation; or neuroleptic still required and symptoms are persistent