Development and characterisation of levosulpiride-loaded suppositories with improved bioavailability in vivo

被引:34
作者
Fakhar-ud-Din [1 ]
Khan, Gul Majid [1 ]
机构
[1] Quaid I Azam Univ, Dept Pharm, Islamabad, Pakistan
关键词
Levosulpiride; liquid suppository; bioavailability; poloxamer solution; LIQUID SUPPOSITORY; L-SULPIRIDE; POLOXAMER; HYDROGEL; ACETAMINOPHEN; FORMULATION; SYSTEM; GELS;
D O I
10.1080/10837450.2017.1419256
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
The purpose of this study was to develop and characterize levosulpiride loaded liquid suppository with improved bioavailability. The content of levosulpiride-loaded liquid suppositories were optimized in a series of experiments using various weight ratios of P188, P407, Tween 80, and drug. The suppositories were liquid at room temperature, however, when rectally administered, they became gel at body temperature. Their rheological properties and release characteristics were determined in vitro while pharmacokinetic study was performed after its rectal administration in rats and compared with drug suspension. Poloxamer 188 and Twee 80 decreased the gelation temperature and gelation time, but increased the gel strength and mucoadhesive force of liquid suppositories. Liquid suppository composed of [Levosulpiride/P 188/P 407/Tween 80 (1/15/17/3%)] with a gelation temperature of about 30.7 degrees C remained liquid at 25 degrees C, but converted to gel at 30-36.5 degrees C, resulting in easy administration and rapid gelation inside the body. This liquid suppository gave a considerably increased dissolution rate reflected in a meaningfully higher plasma concentration and 7.1-fold AUC values of levosulpiride in rats as compared to the drug suspension. Hence, liquid suppository system could be used for enhanced bioavailability of levosulpiride-loaded pharmaceutical products.
引用
收藏
页码:63 / 69
页数:7
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