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《Saudi Pharmaceutical Journal》2022,30(11):1589-1602
PurposeThe aim of this study was to design fast dissolving tablets (FDT) of the anti –psychiatric drug haloperidol in solid dispersion forms as a way to enhance its dissolution profile and anti-psychiatric effect.MethodsSolubility studies of haloperidol in various polymers solutions were investigated. The selected polymer with high drug solubility (Poly ethylene glycol 4000) was used for preparation of solid dispersion through two methods solvent evaporation method and melting method. Haloperidol solid dispersion mixed with other solid powder excipients and compressed into tablets. The resulted tablets were evaluated according to British Pharmacopoeia (B.P.) specifications. Pre- and post -compression studies were performed to determine the flow properties and evaluate the solid dispersion systems, followed by in vivo studies through forced swimming test (FST)ResultsPre-compression studies showed adequate flowability and compatibility of polymer and solid excipients with haloperidol. The selected solid dispersion tablet (SD2) demonstrated the best disintegration and water absorption ratio in addition to satisfactory friability and hardness. Attempts of in vitro dissolution results and thermodynamic stability studies showed acceptable results for (SD2) formulation containing PEG 4000 polymer prepared by melting method.The in vivo study of (SD2) formulation revealed the highest immobility time to rats compared to control rats and others treated with commercial haloperidol product.ConclusionFast dissolving tablets prepared from solid dispersion of haloperidol with PEG4000 expressed rapid onset of action with enhanced anti-psychiatric effect of haloperidol.  相似文献   
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叶进基于脾肾互赞理论辨治性早熟经验   总被引:1,自引:0,他引:1  
任娟  叶进 《山东中医杂志》2019,(10):970-973
脾肾互赞理论来源于《黄帝内经》,李中梓将其总结为脾肾二脏之间存在着双向影响的关系,包括生理上脾肾相辅相成、协同辅助,临床治疗上脾肾相求。性早熟以阴虚火旺为基本病机,兼脾虚痰聚。叶进教授临床辨治性早熟即推崇脾肾互赞理论,多主张脾肾互济为基本治则,故临床治疗中以滋阴降火与健脾化痰兼施,疗效显著。  相似文献   
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Three factors, three levels (33) full factorial design was used to develop venlafaxine HCl fast dissolving oral films (FDOFs) to optimize the concentrations of the film forming polymer; hydroxypropyl methylcellulose HPMC (X1), superdisintegrant; sodium starch glycolate SSG, (X2) and glycerol as the film plasticizer (X3). Effects of the three factors on the disintegration time (Y1), swelling index (Y2), and dissolution efficiency at 15 min; DE%15 (Y3) of the prepared FDOFs were evaluated by using statistical models. The optimized film formula was characterized in term of x-ray powder diffraction (XRPD), differential scanning calorimetry (DSC) and morphological characteristics.Disintegration time was found to increase with the increase in HPMC (X1) concentration, and the shortest disintegration time (21.67 ± 2.08 s) was observed in case of F2 formula (lowest HPMC level and highest glycerol level in absence of SSG). The highest swelling index (3.64 ± 0.59) was observed in case of film formula F1 (medium concentrations of both HPMC and glycerol and highest SSG concentration. The results also indicated that as the concentration of HPMC increased the DE%15 decreased. SSG (X2), with highest value (72.33 ± 1.71%) was recorded for in case of F12 (using 2% HPMC, 5%SSG and 1.5% glycerol). The optimized FDOF formula derived by the statistical models suggested 2% HPMC, 5% SSG, and 1% glycerol.The data obtained from DSC and XRPD revealed no interaction between drug and FDOT excipients. In addition, XRPD studies proved that the venlafaxine HCl was homogeneously dispersed in the film matrix.  相似文献   
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Dosage form is a mean used for the delivery of drug to a living body. In order to get the desired effect the drug should be delivered to its site of action at such rate and concentration to achieve the maximum therapeutic effect and minimum adverse effect. Since oral route is still widely accepted route but having a common drawback of difficulty in swallowing of tablets and capsules. Therefore a lot of research has been done on novel drug delivery systems. This review is about oral dispersible tablets a novel approach in drug delivery systems that are now a day''s more focused in formulation world, and laid a new path that, helped the patients to build their compliance level with the therapy, also reduced the cost and ease the administration especially in case of pediatrics and geriatrics. Quick absorption, rapid onset of action and reduction in drug loss properties are the basic advantages of this dosage form.  相似文献   
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结合历代治疗水湿病证名方的用药配伍特点,对祛湿方剂的组方配伍规律进行探析。其治疗重在调理脾肺肾功能,配伍健脾药,以培土制水;配伍宣肺药,以通调水道;配伍温肾药,助阳化气以行水,使津液输布正常则湿邪不生。在临床诊疗中应辨证论治,正虚为主者或健脾升阳或养阴祛湿,或温肾以助运化;邪实盛者当配伍利尿、活血化瘀、清热等药物,助邪外出。湿热宜清宜利,寒湿宜温宜燥。外湿宜表散,内湿宜淡渗芳化。临床应根据具体病证,注重辨证论治,随证用药,以期取得满意疗效。  相似文献   
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目的:探讨静脉用药集中调配中心(pharmacy intravenous admixture service,PIVAS)无菌粉末溶媒的选择,以期提高成品输液质量,保证静脉用药治疗效果。方法:收集河北省人民医院PIVAS当前在用的122种无菌粉末药品说明书,以“药品名称+溶媒选择”为主题词,检索CNKI、万方等数据库,并参考相关专业书籍,整理溶解溶媒、稀释溶媒及成品输液浓度限制等资料,并综合分析。建立并不断完善PIVAS无菌粉末溶媒选择数据库,统计PIVAS近7年存在溶媒选择不适宜的医嘱占比。结果:122种无菌粉末中有120种对溶解溶媒有特殊要求;120种对稀释溶媒有特殊要求。无菌粉末溶媒选择数据库的建立有效减少了溶媒选择不适宜医嘱占比(从0.48%减少到0.13%),保证了静脉用药安全。结论:溶解溶媒和稀释溶媒的选择是提高成品输液质量、保证静脉用药治疗效果的重要环节。随着DIP付费方式的全面铺开,探索新的稀释溶媒在临床应用的可能性,同时开展多种无菌粉末混合调配的相容性研究,有可能成为PIVAS今后工作的主要内容。  相似文献   
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Background: In the recent years, there is a growth in demand for radiofrequency (RF)-based procedures to improve skin texture, laxity and contour. The new generation of systems allow non-invasive and fractional resurfacing treatments on one platform. Objective: The aim of this study was to evaluate the safety and efficacy of a new treatment protocol using a multisource RF, combining 3 different modalities in each patient: [1] non-ablative RF skin tightening, [2] fractional skin resurfacing, and [3] microneedling RF for non-ablative coagulation and collagen remodelling. Methods: 14 subjects were enrolled in this study using EndyMed PRO? platform. Each patient had 8 non-ablative treatments and 4 fractional treatments (fractional skin resurfacing and Intensif). Results: The global aesthetic score was used to evaluate improvement. All patients had improvement in skin appearance. About 43% had excellent or very good improvement above 50%, 18% had good improvement between 25 and 50%, and the rest 39% had a mild improvement of < 25%. Downtime was minimal and no adverse effect was reported. Conclusions: Our data show significant improvement of skin texture, skin laxity and wrinkle reduction achieved using RF treatment platform.  相似文献   
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Transdermal patches are effective treatment modalities which have variety of advantages. Active ingredient in these systems are absorbed from skin and reach to blood circulation via capillaries. Bypassing hepatic metabolism, providing constant plasma levels of drug for long time, and fewer drug interactions are the main advantages of this method. It is also practical to use. Nowadays transdermal patches are used by dermatologist for variety of indications.  相似文献   
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