Paliperidone-d4 是 Paliperidone 的氘代物。Paliperidone (9-Hydroxyrisperidone) 是 Risperidone 的主要活性代谢产物，是多巴胺 D2 (dopamine D2) 拮抗剂和 5-HT2A 拮抗剂。Paliperidone 对 α1 和 α2 肾上腺素能受体和 H1 组胺能受体也有拮抗作用。Paliperidone 是一种抗精神病活性分子，对精神分裂症有效。 Paliperidone-d4 is the deuterium labeled Paliperidone. Paliperidone (9-Hydroxyrisperidone), the major active metabolite of Risperidone, is a dopamine D2 antagonist and 5-HT2A antagonist. Paliperidone is also active as an antagonist at α1 and α2 adrenergic receptors and H1-histaminergic receptors. Paliperidone, a antipsychotic agent, shows efficacy against schizophrenia.