Synonyms for Antipsychotic Drug (same or very similar meaning)
WordNet sense 1 (tranquilizer used to treat psychotic conditions when a calming effect is desired):
antipsychotic, neuroleptic, major tranquilizer, antipsychotic agent, major tranquilliser, major tranquillizer, neuroleptic agent, neuroleptic drug
From the ODE community, based on WordNet
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