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《Chinese Journal of Clinical Pharmacy》 1994-01
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BIOAVAELABILITY OF BUFFERED ASPIRIN TABLET

Pei Yuanyin Chen Yushi Rong Darnel Chen Jianguo (Shanghai Medical Univ. Dept. Of Pharmaceutics, Dept. Of Instrumental Analysis Center 200032)  
A buffered aspirin tablet was designed and its in vitro dissolution rate, in vitro acid-neutralizing capacity single dose and multiple dose bioavail-abilities and irritation on gastric mucosa were studied.The rate of aspirin dissolution was significantly increased with buffered tablet. It resulted slightly higher peak concentration, slightly larger AUC and significantly earlier peak time compared to that with common tablet, following oral administration in the fasting state. Cm were 154 and 133 μg/ml, AUC were 1 454 and 1 343 μg/ml · h, Tm were 1. 23 and 3. 08 h respectively. The maximum salicylate concentration at steady-state after multiple dose of buffered aspirin tablet and common tablet were 297. 5 and 270μg/ml respectively. The examination of the stomach mucosa was carried under a dissecting microscope 2 h after administration of drug to rats. It was found that the acute gastric erosion following administration of aspirin buffered tablet was significantly reduced compared with common tablet.It is concluded that buffered aspirin tablet causes less gastric irritation, dissolves more rapidly, and is absorbed much better without decreasing the steady-state concentration.
【CateGory Index】: R96
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 BAO Jin-xian, FU Yi-ke~1, XU An-xing~2, LI Song-nians and WU Yu-ming~4 (Institute of pharmaceutical Industry, Beijing; ~1Department of Pharmacy, Beijing Medical College; ~2Institute for Control of Pharmaceutical and Biological Products, Ministry of Health Beijing; ~3Beijing Pharmaceutical Factory; ~4Beijing General Pharmaceutical Corporation);EVALUATION OF THE NEW FORMULATIONS OF ASPIRIN TABLETS IN BIOAVAILABILITY[J];Acta Pharmaceutica Sinica;1982-07
【Co-citations】
Chinese Journal Full-text Database 4 Hits
1 Wang Zhuo(The Factory of Shenyang Pharmaceutical University,Shenyang 110015)Han Limei;Zhang Xiaoqing;Deng Yingjie;Zhang Yanhua;Wang Yue(Institute of Materia Medica,Shenyang Pharmaceutical University,Shenyang 110015);SELECTION OF EXCIPIENTS FOR DISPERSIBLE ASPIRIN TABLETS BY UNIFORM DESIGN[J];JOURNAL OF SHENYANG PHARMACEUTICAL UNIVERSITY;1996-04
2 Zhang Lihua, Mao Fengfei and Tu Xide(Department of Pharmaceutics);STUDIES ON SUSTAINED-RELEASE TABLETS OF ZINC SULFATE[J];Journal of China Pharmaceutical University;1989-02
3 Li Juan, Wang Guangji, Zhao Luhua~1, Lin Kedan Department of Pharmaceutics, ~1Analysis and Computer Center;Studies on Controlled Release Tablet of Piroxicam[J];Journal of China Pharmaceutical University;1990-04
4 WEN Rong,LU Bin (Department of Pharmaceutical Sciences,West China University of Medical Sciences,Chengdu 610041);STUDY ON MICROENCAPSULATED INDOMETHACIN TABLETS[J];Chinese Journal of Pharmaceuticals;1992-12
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