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采用单盲和安慰剂对照的研究方法，观察了５０例脑梗塞后智力减退患者口服尼莫地平和安慰剂治疗前后智力改善情况。治疗前后用长谷川痴呆量表对所有患者进行评分，发现应用尼莫地平治疗组６０％以上病例评分有明显提高，而对照组（应用安慰剂治疗者）评分无明显变化，两组治疗前后智力改善有显著世差异（Ｐ＜０．０５），说明尼莫地平能有效地治疗脑梗塞后的智力减退。
A single blind and placebo-controlled study was used to evaluate the improvement of intelligence in 50 patients with mental retardation after cerebral infarction before and after oral administration of nimodipine and placebo. Before and after treatment with Hasegawa dementia scale for all patients were scored and found that the application of nimodipine treatment group was significantly improved more than 60% of cases score, while the control group (placebo treatment) score no significant change in both groups before and after treatment of intelligence There was a significant difference in improvement (P <0.05), indicating that nimodipine can effectively treat mental retardation after cerebral infarction.