Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) definition of tardive syndromes
| Tardive syndromes are movement disorders distinguished by their late emergence in the course of treatment and their potential persistence for months to years, even in the face of stopping or reducing neuroleptic medication. |
| Symptoms develop in association with using a neuroleptic medication for at least a few months. |
| Symptoms may develop after a shorter period of medication use in older people. |