共查询到19条相似文献,搜索用时 78 毫秒
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用特殊防潮性包衣材料--OpadryAMB对阿司匹林片进行包衣,考察素片和薄膜包衣片中阿司匹林的含量、溶出度、稳定性等.结果表明阿司匹林包复Opadry薄膜衣后增加了稳定性,OpadryAMB防潮效果明显. 相似文献
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多种维生素丸在贮存过程中维生素A和维生素C的含量下降较快,为了解决这一问题,通过改变包衣材料和包衣方法,采用留样观察法和加速实验法进行观察,得出薄膜包衣可大大提高药丸的质量。但从制定有效期的角度来说,仍需在薄膜包衣的防潮性能上做进一步的探索。 相似文献
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目的通过对阿胶颗粒薄膜包衣前后的理化性质分析,为阿胶颗粒进行薄膜包衣的必要性、可行性提供理论依据。方法通过对阿胶颗粒进行薄膜包衣前后的溶化性、外观性状和吸湿性进行对比分析,探讨颗粒包衣前后理化性质的变化。结果薄膜包衣对阿胶的溶化性、外观性状的影响比较小,但不同薄膜衣对阿胶颗粒的吸湿性影响比较明显,其中薄膜包衣预混剂英依美防潮效果较好,在相对湿度75%条件下84 h的吸湿率为0.84%,而薄膜包衣羟丙基甲基纤维素(HPMC)的吸湿率为0.98%;两种包衣颗粒的临界相对湿度无明显差别,约在70%,但均比未包衣颗粒的临界相对湿度50%大。结论薄膜包衣预混剂英依美防潮效果较好,且不干扰阿胶颗粒的质量,车间环境的相对湿度控制在约60%可更好地保证产品质量。 相似文献
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普乐安片薄膜包衣工艺研究 总被引:3,自引:0,他引:3
王开疆 《中国医药工业杂志》2002,33(10):489-490
采用自配薄膜包衣液及两种市售薄膜包衣材料对普乐安片进行薄膜包衣,比较了包衣材料的防潮性能,并对包衣液的用量进行了筛选。 相似文献
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目的:通过研究不同包衣处方对青霉素V钾片进行包衣,并考察稳定性。方法:采用水溶性防潮包衣材料和醇溶性防潮包衣材料分别对青霉素V钾片进行包衣,并就其质量稳定性进行对比。结果:采用醇溶防潮包衣的青霉素V钾片,具有较佳的防潮性能和稳定性。结论:利用醇溶防潮包衣材料进行青霉素V钾片薄膜包衣,产品质量稳定,值得广泛应用。 相似文献
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卡乐康中国公司 《中国医药工业杂志》2013,44(3)
上世纪90年代,卡乐康公司(www.colorcon.com.cn)在全球推出了以聚乙烯醇(PVA)为成膜材料的包衣系统.因具有黏度低、成膜性好、防潮性能强等优点,PVA被广泛用于各种片剂的薄膜包衣.从2007~2009年美国FDA批准的新药审批(NDA)数据来看,PVA已取代羟丙甲纤维素(HPMC),成为全配方包衣预混系统首选的成膜材料.
理想的速释薄膜包衣系统应具有包衣效率高、防潮性能好、对片芯的释放没有影响等特征.欧巴代(R)200 (Opadry(R) 200)是卡乐康最新优化的速释包衣系统,通过配方优化,保留了各种高分子材料用于速释薄膜包衣的优点.欧巴代(R) 200是适用于挑战性片芯的薄膜包衣系统,具有卓越的防潮性能和杰出的颜色稳定性,能够在更高的固含量条件下实现稳定的包衣.本文报道了欧巴代(R) 200的各种基础性能及在模型药物上的应用. 相似文献
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P D Nadkarni D O Kildsig P A Kramer G S Banker 《Journal of pharmaceutical sciences》1975,64(9):1554-1557
The adhesion of a polymer film to selected tablet substrates was studied. The effect of tablet surface roughness and film-coating solvent on the adhesion of the film to the tablet was determined. A film-coating solvent having a solubility parameter close to that of the polymer was found to produce a stronger adhesional bond than a solvent having a lower surface tension. An increase in tablet surface roughness also increased film adhesion to the tablet. The adhesion was measured as the force required to peel a section of film from the tablet with a stress-strain analyzer. 相似文献
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Karin Krogars Osmo Antikainen Jyrki Hein?m?ki Niklas Laitinen Jouko Yliruusi 《European journal of pharmaceutical sciences》2002,17(1-2):23-30
The purpose of the present study was to investigate an aqueous-based amylose-rich maize starch (Hylon VII) film-coating process of tablets performed by a side-vented pan coating system. Three formulation or process parameters of potential importance, including the plasticizer concentration (X(1)), the temperature of coating pan (X(2)) and the spray rate of the coating solution (X(3)), were evaluated using a central composite face-centred experimental design. Only a few process-related limitations associated with the aqueous film coating of Hylon VII were observed, and, in general, the coated tablets were of fairly good quality. At low spray rates, the temperature of the coating pan did not affect the roughness of the coated tablets. At higher spray rates, higher temperature gave smoother films. As regards surface quality and smoothness, a plasticizer concentration (i.e., a 1:1 mixture of sorbitol and glycerol) of approximately 65% of the polymer weight, seems to be suitable for the present formulations. The dissolution of all Hylon VII-coated tablets in an acidic medium was rapid, more than 75% of the drug (theophylline) dissolved within 15 min. On the basis of the present results, it can be concluded that amylose-rich maize starch (Hylon VII) may be considered as an aqueous film-coating agent to be used for pharmaceutical purposes and in established film-coating processes. 相似文献
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McGrath MG Vrdoljak A O'Mahony C Oliveira JC Moore AC Crean AM 《International journal of pharmaceutics》2011,415(1-2):140-149
Coated microneedle patches have demonstrated potential for effective, minimally invasive, drug and vaccine delivery. To facilitate cost-effective, industrial-scale production of coated microneedle patches, a continuous coating method which utilises conventional pharmaceutical processes is an attractive prospect. Here, the potential of spray-coating silicon microneedle patches using a conventional film-coating process was evaluated and the key process parameters which impact on coating coalescence and weight were identified by employing a fractional factorial design to coat flat silicon patches. Processing parameters analysed included concentration of coating material, liquid input rate, duration of spraying, atomisation air pressure, gun-to-surface distance and air cap setting. Two film-coating materials were investigated; hydroxypropylmethylcellulose (HPMC) and carboxymethylcellulose (CMC). HPMC readily formed a film-coat on silicon when suitable spray coating parameter settings were determined. CMC films required the inclusion of a surfactant (1%, w/w Tween 80) to facilitate coalescence of the sprayed droplets on the silicon surface. Spray coating parameters identified by experimental design, successfully coated 280μm silicon microneedle arrays, producing an intact film-coat, which follows the contours of the microneedle array without occlusion of the microneedle shape. This study demonstrates a novel method of coating microneedle arrays with biocompatible polymers using a conventional film-coating process. It is the first study to indicate the thickness and roughness of coatings applied to microneedle arrays. The study also highlights the importance of identifying suitable processing parameters when film coating substrates of micron dimensions. The ability of a fractional factorial design to identify these critical parameters is also demonstrated. The polymer coatings applied in this study can potentially be drug loaded for intradermal drug and vaccine delivery. 相似文献
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Claire Gendre Muriel Genty Barbara Fayard Ali Tfayli Mathieu Boiret Olivier Lecoq Michel Baron Pierre Chaminade Jean Manuel Péan 《International journal of pharmaceutics》2013
Curing is generally required to stabilize film coating from aqueous polymer dispersion. This post-coating drying step is traditionally carried out in static conditions, requiring the transfer of solid dosage forms to an oven. But, curing operation performed directly inside the coating equipment stands for an attractive industrial application. Recently, the use of various advanced physico-chemical characterization techniques i.e., X-ray micro-computed tomography, vibrational spectroscopies (near infrared and Raman) and X-ray microdiffraction, allowed new insights into the film-coating structures of dynamically cured tablets. Dynamic curing end-point was efficiently determined after 4 h. The aim of the present work was to elucidate the influence of curing conditions on film-coating structures. Results demonstrated that 24 h of static curing and 4 h of dynamic curing, both performed at 60 °C and ambient relative humidity, led to similar coating layers in terms of drug release properties, porosity, water content, structural rearrangement of polymer chains and crystalline distribution. Furthermore, X-ray microdiffraction measurements pointed out different crystalline coating compositions depending on sample storage time. An aging mechanism might have occur during storage, resulting in the crystallization and the upward migration of cetyl alcohol, coupled to the downward migration of crystalline sodium lauryl sulfate within the coating layer. Interestingly, this new study clearly provided further knowledge into film-coating structures after a curing step and confirmed that curing operation could be performed in dynamic conditions. 相似文献
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陈建娥 《中国现代应用药学》2001,18(2):111-112
目的:为了进一步提高盐酸洛美沙星片溶出与吸收性能。方法:采用微粉化及新型片剂辅料。结果:制备了高效盐酸洛美沙星薄膜衣片。结论:经对照检验,结果溶出度较市售品显著加速 相似文献
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以盐酸地尔硫(艹卓)为模型药物,不溶性乙基纤维素为阻滞材料,Eudragit L100及S100为致孔剂,采用薄膜包衣法制得延迟释放片.结果表明,阻滞层包衣材料的配比和增塑剂柠檬酸三乙酯的用量是影响延迟效果的主要因素. 相似文献