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. 2013 Sep 20;9:1381–1392. doi: 10.2147/NDT.S49944

Table 2.

Categories of EPS-related adverse events: MedDRA preferred terms

EPS-related AE subgroups MedDRA preferred terms
Tremor Tremor, essential tremor, intention tremor
Dystonia Oculogyration, oculogyric crisis, trismus, tongue spasm, tongue paralysis, cervical spasm, emprosthotonus, myotonia, pleurothotonus, risus sardonicus, muscle spasms, blepharospasm, dystonia, opisthotonus, torticollis, facial spasm, muscle contracture
Hyperkinesia Akathisia, hyperkinesia, periodic limb movement disorder, restless legs syndrome, restlessness
Parkinsonism Hypertonia, bradykinesia, cogwheel rigidity, drooling, musculoskeletal stiffness, akinesia, hypokinesia, nuchal rigidity, Parkinsonian gait, Parkinsonian rest tremor, parkinsonism, muscle rigidity, muscle tightness, glabellar reflex abnormal, on and off phenomenon, Parkinson’s disease, Parkinsonian crisis, extrapyramidal disorder, masked facies
Dyskinesia Dyskinesia, muscle contractions involuntary, movement disorder, muscle twitching, athetosis, chorea, choreoathetosis, tardive dyskinesia, myoclonus

Abbreviations: AE, adverse event; EPS, extrapyramidal symptoms; MedDRA, Medical Dictionary for Regulatory Activities.