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Objective To investigate the clinical effect of sodium valproate tablets combined with venlafaxine hydrochloride sustained-release tablets in female patients with schizophrenia complicated with affective disorders and its influence on the recurrence time.Methods From January 2013 to July 2016,98 female patients with schizophrenia complicated by affective disorder in Taiyuan Mental Hospital were selected and randomly divided into single group (n =49) and combination group (n =49) according to the digital table.The single drug group was treated with sodium valproate tablets,and the combination group was treated with venlafaxine hydrochloride sustained-release tablets on the basis of a single drug group.The clinical efficacy and recurrence time of the two groups were compared.Results The scores of withdrawal symptoms [(4.39 ± 0.94) points],positive symptoms [(11.55 ± 4.30) points],negative symptoms [(11.09 ± 1.21) points] and psychiatric symptoms [(12.01 ±2.16) points] in the combination group were all significantly lower than those at 1 month after treatment[(10.98 ±1.43) points,(16.74 ± 3.89) points,(18.43 ± 2.05) points,(19.83 ± 3.44) points] (t =12.957,18.471,all P ＜0.05).The incubation period and amplitude of the P300 potentials in the combination group were (314.55 ± 9.21) s,(4.05 ± 1.76)s,respectively,which were both higher than those of the single drug group [(341.60 ± 25.87)s,(2.58 ± 2.30)s] (t =18.251,15.738,all P ＜ 0.05).The eye movements of the combination group 12 weeks after operaion were (27.30 ± 1.41) s and (6.15 ± 0.98) s,respectively,which were higher than those of the single drug group[(25.10 ± 2.93) s and (5.10 ± 1.20) s] (t =13.992,15.836,all P ＜ 0.05).The recurrence rate of the combined group was 8.16％,which was lower than 18.37％ of the single drug group(x2 =6.893,P ＜ 0.05).The hospitalization duration [(14.83 ± 4.61)d],symptom improvement time [(34.94 ± 7.85)d] of the combined group were shorter than those of the single drug group [(27.91 ± 7.49) d,(59.81 ± 10.94) d] (t =18.946,21.461,all P ＜ 0.05).The recurrence time at 12 weeks after treatment of the combination group was (148.48 ± 33.19)d,which was longer than (109.46 ±28.88)d of the single drug group(t =16.893,P ＜0.05).Conclusion The combination of sodium valproate tablets and venlafaxine hydrochloride sustained-release tablets in.patients with schizophrenia complicated with affective disorders can improve the clinical effect,shorten the recurrence time and improve the cognitive function of patients,which is worth popularizing and applying.
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Objective: To establish a GC determination method for the content and dissolution of magnesium valproate tablets. Methods:Magnesium valproate tablets were detected by a GC internal standard method. The samples were dissolved in 0. 1 mol·L-1 hydrochloric acid solution, and then extracted by dichloromethane. Eicosane was used as the internal standard. The dissolution was de-termined by the first method described in ChP 2015 edition. The dissolution medium was 0. 1 mol·L-1 hydrochloric acid solution and the rotation speed was 100 r·min-1 with the sampling time at 45 min. The samples were extracted by dichiormethane, and eicosane was used as the internal standard as well. Results: The dissolution of magnesium valproate tablets showed good linearity within the range of 0. 005-1. 000 mg·ml-1(r=0. 9999). The recovery was 99. 2% (RSD=0. 5%, n=9). The dissolution curve showed that magnesium valproate released above 80% in 45 minutes. Conclusion:The method has good specificity and high accuracy, and can be used for the content determination and dissolution detection of magnesium valproate tablets.
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Objective:To evaluate the measurement uncertainty in the determination of sodium valproate tablets by GC with an in -ternal standard method , and determine the main sources of uncertainty .Methods:A GC internal standard method was selected to sys-tematically analyze the uncertainty in the determination of sodium valproate tablets , including the sample quantity , dilution ratio, purity and area repeatability of chromatographic peaks .Results: The expanded uncertainty of sodium valproate tablets was 2.7%, and the determination range of sodium valproate tablets was (96.3 ±2.7)%(k=2).Conclusion:The established GC internal standard meth-od for the uncertainty evaluation is reliable , which is helpful to improving the quality evaluation and control of sodium valproate tablets .