major tranquilliser,"['major tranquillizer', 'antianxiety agent', 'antipsychotic', 'antipsychotic agent', 'antipsychotic drug', 'ataractic', 'ataractic agent', 'ataractic drug', 'neuroleptic', 'neuroleptic agent', 'neuroleptic drug', 'tranquilizer', 'tranquilliser', 'tranquillizer']"