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Study of Sustained Release Phenylpropanolamine Hydrochloride Hydrophilic Matrix Tablets Containing Hydroxypropylmethylcellulose K100M and Carbopol 971P 被引量:1
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作者 吕丹 裴元英 《Journal of Chinese Pharmaceutical Sciences》 CAS 2000年第4期185-190,共6页
选用HPMC K100M和卡波普971P为骨架材料,粉末直接压片法制备骨架片,考察释放度,反相高效液相色谱法检测盐酸苯丙醇胺(PPA·HCl)的浓度。释药曲线均符合Higuchi方程(R>0.98,P<0.01)。运用正交设计法,以美国市场的PPA&#... 选用HPMC K100M和卡波普971P为骨架材料,粉末直接压片法制备骨架片,考察释放度,反相高效液相色谱法检测盐酸苯丙醇胺(PPA·HCl)的浓度。释药曲线均符合Higuchi方程(R>0.98,P<0.01)。运用正交设计法,以美国市场的PPA·HCl缓释片Acutrim^R为对照,相似因子f2值为指标,筛选获得了最优处方。其工艺重现性合格。研制片在0.1mol·L^-1 HCl,H2O(pH6.5),磷酸盐缓冲液(PBS)pH5.0,6.8和7.4的介质中,以及在0.1mol·L^-1HCl中释放2h,转移至PBS6.8中释放10h,相对于对照品的f2值为63-74,表明在各介质中两制剂的释药曲线相似。释药影响因素的考察结果表明:在本实验考察的范围内,骨架片在水中的释药速率与HPMC K100M和卡波普971P的用量呈负相关。HPMC K100M和卡波普971P的比例(保持聚合物总用量相同),硬脂酸镁量和骨架片硬度对释药速率无显著性影响。 展开更多
关键词 Hydroxypropylmethylcellulose(HPMC K100M) Carbopol 971P phenylpropanolamine Hydrochloride Hydrophilic sustained release matrix tablets Similarity factor
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Synthesis, Characterization and Antimicrobial Study of a New Schiff Base Paeonol-phenylpropanolamine 被引量:7
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作者 许同桃 许兴友 +4 位作者 高健 刘兰蕾 倪帅帅 陆路德 杨绪杰 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2006年第12期1502-1506,共5页
A novel Schiff base compound was synthesized by the reaction of paeonol and phenylpropanolamine in absolute methanol. It was characterized by elemental analyses, IR, tH NMR and X-ray single-crystal diffraction. The co... A novel Schiff base compound was synthesized by the reaction of paeonol and phenylpropanolamine in absolute methanol. It was characterized by elemental analyses, IR, tH NMR and X-ray single-crystal diffraction. The compound crystallizes in the wiclinic system, space group PI, with a = 6.4075(11), b = 10.2821(18), c = 12.573(2) A, α = 92.606(3),β= 100.980(3), γ = 90.994(3)°, V= 812.1(2) A3, Mr = 299.36, Z = 2, F(000) = 320, Dc=1.224 g/cm^3, T= 293(2) K,μ = 0.083 mm^-1 and 2 = 0.71073 A, the final R = 0.0555 and wR = 0.1619 for 2442 observed reflections with I 〉 2σ(I). The colnpound was valued for its antimicrobial activity against bacterial strands using the agar diffusion method. It is found to be active against Candida albicans and Staphylococcus aureus. 展开更多
关键词 phenylpropanolamine paeonoi crystal structure antimicrobial activity
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