This invention relates to novel compositions of matter containing enantiomerically enriched (−)-desmethylcitalopram, (+)-didesmethylcitalopram, or (−)-didesmethylcitalopram or mixtures thereof in optimal ratios. Contrary to prior teachings, the enantiomerically enriched citalopram metabolites disclosed herein possess potent serotonin reuptake inhibitory activity, with minimal inhibitory effects on the reuptake of other known monoamines, e.g., norepinephrine (NE) or dopamine (DA). The present invention also discloses methods for treating disorders, dysfunctions and diseases for which inhibition of serotonin reuptake is therapeutically beneficial. In particular, the present invention discloses a method for treating various forms of depression with pharmaceutical compositions described herein.
                            本发明涉及一种新型物质组成,其中包含对映体富集的(−)-去甲环西帕胺、(+)-二去甲环西帕胺、或(−)-二去甲环西帕胺或其最佳比例的混合物。与以往的教导相反,本发明所披露的对映体富集的环西帕胺代谢物具有强效的5-羟
色胺再摄取抑制活性,对其他已知单胺的再摄取,如
去甲肾上腺素(NE)或
多巴胺(
DA)的抑制作用最小。本发明还披露了治疗抑制5-羟
色胺再摄取在治疗上有益的各种疾病、功能障碍和疾病的方法。特别是,本发明披露了使用本文所述的制药组合物治疗各种形式的抑郁症的方法。