Second‐derivative synchronous spectrofluorimetric determination of nebivolol hydrochloride and amlodipine besylate in their combined dosage form

A rapid, simple, accurate and highly sensitive spectrofluorimetric method was developed for the simultaneous analysis of nebivolol hydrochloride (NEB) and amlodipine besylate (AML). The method was based on measuring the synchronous fluorescence intensity of the drugs at Δλ = 40 nm in methanol. Various experimental parameters affecting the synchronous fluorescence of the studied drugs were carefully studied and optimized. The calibration plots were rectilinear over concentration ranges of 0.05–1.5 µg/mL and 0.5–10 µg/mL for NEB and AML with limits of detection (LOD) of 0.010 and 0.051 µg/mL and limits of quantitation (LOQ) of 0.031 and 0.156, respectively. The peak amplitudes (²D) of the second derivative synchronous fluorimetry (SDSF) were estimated at 282 nm for NEB and at 393 nm for AML. Good linearity was obtained over the concentration ranges. The proposed method was successfully applied to the determination of the studied compounds in laboratory‐prepared mixtures, commercial single and laboratory‐prepared tablets. The results were in good agreement with those obtained using the comparison method. The mean percent recoveries were found to be 100.12 ± 0.77 and 99.91 ± 0.77 for NEB and AML, respectively. Copyright © 2015 John Wiley & Sons, Ltd.     

Steady‐state and synchronous spectrofluorimetric methods for simultaneous determination of aliskiren hemifumarate and amlodipine besylate in dosage forms

Aliskiren hemifumarate (ALS) and amlodipine besylate (AML) were simultaneously determined by two different spectrofluorimetric techniques. The first technique depends on direct measurement of the steady‐state fluorescence intensities of ALS and AML at 313 nm and 452 nm upon excitation at 290 and 375 nm, respectively, in a solvent composed of methanol and water (10: 90, v/v) . The second technique utilizes synchronous fluorimetric quantitative screening of the emission spectra of ALS and AML at 272 and 366 nm, respectively using Δλ of 97 nm. Effects of different solvents and surfactants on relative fluorescence intensity were studied. The method was validated according to ICH guidelines. Linearity, accuracy and precision were found to be satisfactory in both techniques over the concentration ranges of 1–15 and 0.4–4 µg/mL for ALS and AML, respectively. In the first technique, limit of detection and limit of quantification were estimated and found to be 0.256 and 0.776 µg/mL for ALS as well as 0.067 and 0.204 µg/mL for AML, respectively. Also, limit of detection and limit of quantification were calculated in the synchronous method and found to be 0.293 and 0.887 µg/mL for ALS as well as 0.034 and 0.103 µg/mL for AML, respectively. The methods were successfully applied for the determination of the two drugs in their co‐formulated tablets. The results were compared statistically with reference methods and no significant difference was found. The developed methods are rapid, sensitive, inexpensive and accurate for the quality control and routine analysis of the cited drugs in bulk and in pharmaceutical preparations without pre‐separation. Copyright © 2014 John Wiley & Sons, Ltd.     

苯磺酸左旋氨氯地平片联合脂必泰治疗糖尿病合并冠心病痰瘀交阻证的临床疗效观察

摘要目的：观察苯磺酸左旋氨氯地平片联合脂必泰胶囊治疗糖尿病合并冠心病痰瘀交阻证的临床疗效。方法：120例糖尿病性冠心病痰瘀交阻证患者随机分为两组,均给与注射胰岛素控制血糖。对照组（n=60）给与阿托伐他汀10mg,每日1次口服。治疗组（n=60）给与苯磺酸左旋氨氯地平片5mg,每天1次口服;脂必泰胶囊1粒,每天2次口服。两组均治疗3个月。分析比较治疗前后空腹血糖（FBG）、总胆固醇（TC）等指标,心电图（ECG）,并记录中医症状积分。结果：治疗组总有效率86．67％,对照组总有效率51．67％,两组相比较,差异有显著性（P〈0．01）。两组空腹血糖（VBO）、糖化血红蛋白（HbAlc）、甘油三酯（TO）等指标治疗后与治疗前比较,差异有统计学意义（P〈0．05或P〈0．01）。治疗后治疗组总胆固醇（TC）、高密度脂蛋白（HDL．C）与对照组相比较,变化显著（P〈0．05）。治疗组中医症状积分下降较对照组明显（P〈O．05或P〈0．01）。结论：苯磺酸左旋氨氯地平片联合脂必泰胶囊治疗糖尿病性冠心病痰瘀交阻证疗效确切。     

苯磺酸左旋氨氯地平在治疗老年轻中度高血压中的作用

目的:观察探讨苯磺酸左旋氨氯地平治疗老年轻中度高血压患者的临床疗效和安全性。方法:160例老年轻中度高血压患者随机分为研究组与对照组,研究组给予苯磺酸左旋氨氯地平;对照组给予苯磺酸氨氯地平,治疗过程中进行24h血压监测,总治疗8周为一疗程。结果:研究组4周末和8周末的总有效率分别为78.75%和96.25%,显著高于对照组的53.75%和86.25%,差异有统计学意义(P<0.05)。治疗前后两组的舒张压和收缩压均有明显降低,其中研究组收缩压平均下降(29.0±3.2)mmHg,舒张压平均下降(15.3±2.3)mmHg,对照组则分别下降(18.5±2.8)mmHg和(9.0±2.5)mmHg,差异具有统计学意义(P<0.05)。治疗8周末的24h、白昼和夜间的收缩压和舒张压均有明显降低,差异有统计学意义(P<0.05),但治疗组下降更明显,与对照组比较差异有统计学意义(P<0.05)。治疗后两组的脉压均有明显降低,差异具有统计学意义(P<0.05),但研究组下降更明显。结论:苯磺酸左旋氨氯地平治疗老年轻中度高血压临床疗效好,不良反应少,且对心脏具有保护功能。     

苯磺酸左旋氨氯地平在治疗老年轻中度高血压中的作用

目的：观察探讨苯磺酸左旋氨氯地平治疗老年轻中度高血压患者的临床疗效和安全性。方法：160例老年轻中度高血压患者随机分为研究组与对照组,研究组给予苯磺酸左旋氨氯地平;对照组给予苯磺酸氨氯地平,治疗过程中进行24h血压监测,总治疗8周为一疗程。结果：研究组4周末和8周末的总有效率分别为78.75%和96.25%,显著高于对照组的53.75%和86.25%,差异有统计学意义（P〈0.05）。治疗前后两组的舒张压和收缩压均有明显降低,其中研究组收缩压平均下降（29.0±3.2）mmHg,舒张压平均下降（15.3±2.3）mmHg,对照组则分别下降（18.5±2.8）mmHg和（9.0±2.5）mmHg,差异具有统计学意义（P〈0.05）。治疗8周末的24h、白昼和夜间的收缩压和舒张压均有明显降低,差异有统计学意义（P〈0.05）,但治疗组下降更明显,与对照组比较差异有统计学意义（P〈0.05）。治疗后两组的脉压均有明显降低,差异具有统计学意义（P〈0.05）,但研究组下降更明显。结论：苯磺酸左旋氨氯地平治疗老年轻中度高血压临床疗效好,不良反应少,且对心脏具有保护功能。     

左旋氨氯地平联合心理干预治疗高血压伴更年期综合征患者的疗效观察

目的:探讨左旋氨氯地平联合心理干预治疗高血压伴更年期综合征的疗效;方法:将100例高血压伴更年期综合征患者随机分为两组,对照组给予左旋氨氯地平+常规更年期综合征治疗,联合组给予左旋氨氯地平+心理干预+常规更年期综合征治疗,采用汉密尔顿焦虑量表(HAMA)和抑郁量表(HAMD)评分评估患者主要症状改善情况,对比两组临床疗效及卵巢功能。结果:治疗1个月后,两组患者血压均降低,联合组降压总有效率为92.0%,优于对照组的52.0%,比较有显著性差异(P0.05);与对照组相比,联合组血清促卵泡成熟激素(FSH)和促黄体生成素(LH)下降明显,雌激素(E2)水平显著上升,两组比较有显著性差异(P0.01);联合组症状积分改善较为显著,明显优于对照组(P0.01)。结论:左旋氨氯地平联合心理干预对治疗高血压伴更年期综合征具有显著的疗效,可有效降低患者血压,改善负性情绪。     

左旋氨氯地平联合综合性心理干预治疗高血压伴围绝经综合征患者的临床观察

目的:探讨左旋氨氯地平联合综合性心理干预治疗高血压伴围绝经综合征患者的临床治疗效果,为临床治疗提供参考。方法:按照随机数字表法将2014年7月-2015年7月三峡大学仁和医院收治的113例高血压伴围绝经综合征患者分为两组,观察组(n=57例)采用左旋氨氯地平联合综合性心理干预,对照组(n=56例)仅予以左旋氨氯地平治疗。治疗1个月后,采用汉密尔顿焦虑量表(HAMA)和抑郁量表(HAMD)评分对两组患者的主要症状改善进行评估,测量两组治疗前后卵巢功能指标促黄体生成素(Luteinizing hormone,LH)、血清促卵泡成熟激素(Follicle stimulating hormone,FSH)以及雌激素(Estrogen,E2),并比较两组患者治疗后的临床疗效。结果:两组患者治疗后的LH、FSH以及E2水平均较治疗前明显改善,且观察组改善的幅度明显优于对照组,差异有统计学意义(P0.05)。两组治疗后的HAMA、HAMD评分均较治疗前降低,且观察组降低的幅度明显优于对照组,差异有统计学意义(P0.05)。观察组治疗后的临床疗效优于对照组,差异有统计学意义(P0.05)。结论:左旋氨氯地平联合综合性心理干预可明显改善患者的负性情绪和提高临床治疗效果,有较高的临床推广价值。     

薛氏4号方联合苯磺酸氨氯地平片治疗湿热侵络型高血压的疗效及对血脂和血液流变学的影响

摘要 目的：观察湿热侵络型高血压患者经苯磺酸氨氯地平片联合薛氏4号方治疗后的疗效及其对血脂和血液流变学的影响。方法：采用随机数字表法将2020年1月~2022年12月期间石家庄市中医院收治的120例湿热侵络型高血压患者分为对照组（n=60,苯磺酸氨氯地平片治疗）及联合组（n=60,对照组基础上接受薛氏4号方治疗）。观察两组治疗4周后的临床疗效,对比两组治疗前、治疗4周后的血压、中医证候积分、血脂和血液流变学情况。结果：联合组的临床总有效率高于对照组（P<0.05）。联合组治疗4周后收缩压（SBP）、舒张压（DBP）低于对照组（P<0.05）。联合组治疗4周后眩晕、头痛、口渴少饮、肢体困重、失眠、心悸、胸闷、肢体麻木中医证候积分低于对照组（P<0.05）。联合组治疗4周后甘油三酯（TG）、总胆固醇（TC）、低密度脂蛋白胆固醇（LDL-C）低于对照组,高密度脂蛋白胆固醇（HDL-C）高于对照组（P<0.05）。联合组治疗4周后红细胞聚集指数、血小板最大聚集率、全血高切黏度、全血低切黏度低于对照组（P<0.05）。结论：薛氏4号方联合苯磺酸氨氯地平片治疗湿热侵络型高血压,可提高临床疗效,降低血压,降低中医证候积分,改善血脂和血液流变学。     

苯磺酸左旋氨氯地平片联合厄贝沙坦对老年难治性高血压的临床疗效

目的:探讨苯磺酸左旋氨氯地平片与厄贝沙坦的联合应用对老年难治性高血压患者临床疗效的影响及其可能机制。方法:选取我院确诊并治疗的老年难治性高血压患者72例作受试者,按随机数字表法分为两组,对照组36例予以利尿药联合厄贝沙坦进行血压调控,治疗组36例在对照组基础上予联合苯磺酸左旋氨氯地平片2.5 mg日一次进行治疗。观察两组患者的临床疗效,监控患者血压情况,比较治疗前后患者血清同型半胱氨酸(Hcy)、TNF-α及IL-6水平的变化。结果:对照组总有效率低于治疗组(P0.05);与对照组比较,治疗组患者血压控制情况较好,治疗后血清Hcy、TNF-α及IL-6水平降低,差异具有统计学意义(P0.05)。结论:苯磺酸左旋氨氯地平片与厄贝沙坦的联合应用可有效控制老年难治性高血压患者的血压、尽早恢复患者血压稳定,可能与其降低血清Hcy、TNF-α、IL-6的水平有关。