antipsychotic agent first generation antipsychotic Antipsychotic drugs which can have different modes of action but which tend to be more likely than second generation antipsychotics to cause extrapyramidal motor control disabilities such as body rigidity or Parkinson's disease-type movements; such body movements can become permanent even after treatment has ceased. CHEBI:65190 Wikipedia:Typical_antipsychotic chebi_ontology first generation antipsychotic agent first generation antipsychotic agents first generation antipsychotic drug first generation antipsychotic drugs first generation antipsychotics typical antipsychotic typical antipsychotic agent typical antipsychotic agents typical antipsychotic drug typical antipsychotic drugs typical antipsychotics