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Abstract

Objective  The purpose of this subject is developping repaglinide dispersible tablets, aims to improve the bioavailability of drugs, improve compliance and the establishment of scientific and strict quality control standards. Repaglinide dispersible tablets have been sold to the U.S. **Zhongshan pharmaceutical company. This article developed the microemulsion capsule of repaglinide, aims to further improve the bioavailability of the drug  and reduce drug side effects that may exist.
Methods (1) repaglinide dispersible tablets prescription and technology

[ Last edited by tianya716 on 2010-5-18 at 18:36 ]
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

mmyytiger

ÖÁ×ðľ³æ (Ö°Òµ×÷¼Ò)

Ժʿ

tianya716(½ð±Ò+3, ·­ÒëEPI+1):òÊǹ¤¾ß·­ÒëµÄ 2010-05-18 22:23:13
sirljz:½ûÖ¹¹¤¾ßÖ±½Ó·­ÒëµÄ»ØÌû 2010-05-20 17:32:32
Abstract

objective
The purpose of this subject develop repaglinide, dispersible tablets, aims to improve the bioavailability of drugs, improve compliance and the establishment of scientific and strict quality control standards. Repaglinide dispersible tablets have been developed and ** transfer clinical trials and pharmaceutical companies on sale. This article developed from the microemulsion capsule repaglinide, aims to further improve the bioavailability of drugs and reduce drug side effects that may exist.

Methods
(1) repaglinide tablet formulation and technology of single factor experiments to spread the uniformity and dissolution rate as an index of the types of screening accessories; orthogonal test, to spread uniformity, dissolution rate for the index for accessories to optimize the dosage and ultimately determine the prescription. Single-factor test and the equivalent incremental mixing method - wet granulation process, solvent dispersion mixing method - wet granulation process and the equal incremental mixing method - the powder pellets technology, comparing the optimized process .
(2) Determination of repaglinide tablet study to recovery and durability for the evaluation of pH indicator, the three methods the determination of repaglinide tablets compared to finalize the United States Pharmacopoeia repaglinide Determination tablets better. And according to the United States Pharmacopoeia method for the determination of repaglinide tablets, dispersible tablets was established method for the determination of repaglinide.
(3) determination of repaglinide in tablet dissolution studies on repaglinide tablet dissolution medium and the speed of screening, the establishment of a scientific and reasonable method of dissolution test, and repaglinide were dispersible tablets In vitro evaluation.
(4) repaglinide tablet related substances by acid, alkali, heat broken ring test, the material on repaglinide may be isolated by diode array detector and the main peak of the purity of the drug inspection, the establishment of rigorous science and repaglinide repaglinide tablet Determination of related substances.
(5) the acceleration of dispersible tablets stability of repaglinide on repaglinide tablet was 6 months of accelerated stability test, and to predict the drug is valid for 2 years.
(6) repaglinide from microemulsion capsule by orthogonal experiment and the ternary phase diagram, with solubility, light transmittance, particle size index, selection repaglinide from microemulsion capsule formulation, and evaluated the quality of Stability study and preliminary.

Results
(1) successfully optimized repaglinide repaglinide tablet dispersible tablets prescription, and the establishment of a scientific rigorous quality standards. Home Repaglinide dispersible tablets compared with ordinary commercial dissolution rate and dissolution of 30min were significantly increased, initially to improve drug bioavailability purposes.
(2) of repaglinide from microemulsion capsule successfully optimized microemulsion capsules from prescription repaglinide, and the establishment of quality control and evaluation criteria. Repaglinide from microemulsion capsule, and general commercial and home-made capsules, tablets compared, the release rate and the dissolution of 30min were significantly increased, initially to improve drug bioavailability purposes.
Conclusion screening repaglinide tablet and capsule from the microemulsion reasonable prescription, preparation is simple and feasible, effective quality control quality standards. Preparation of repaglinide tablet and capsule from the microemulsion formulation meet quality requirements. In vitro evaluation studies, the development of repaglinide in tablet and capsule from the microemulsion, with commercially available conventional tablets and capsules, compared to significantly speed up the dissolution, initially to improve drug bioavailability purposes.

Keywords: Repaglinide; tablet; from microemulsion capsule; orthogonal test; quality standards; ternary phase diagram; Star points - response surface design
ÎÒÊÇÒ»Ö»ÕõÔúÔÚ¹úÄÚ½Ìѧ¿ÆÑеÚÒ»ÏßµÄ³æ³æ£¡×ÔÇ¿²»Ï¢µÄ³æ³æ£¡ÎªÁËÉú»î£¬Æ´ÁË£¡
2Â¥2010-05-18 18:44:13
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

tianya716

ľ³æ (ÕýʽдÊÖ)


ÉÏÃæÏñÊǹ¤¾ß·­ÒëµÄ£¿
3Â¥2010-05-18 19:40:32
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

benmao_mogu

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
Originally posted by tianya716 at 2010-05-18 19:40:32:
ÉÏÃæÏñÊǹ¤¾ß·­ÒëµÄ£¿

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4Â¥2010-05-18 19:44:50
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

tianya716

ľ³æ (ÕýʽдÊÖ)


Óù¤¾ß·­ÒëµÄÊDz»Ðеģ¬¿´À´µÃ×Ô¼º°¾Ò¹·­Òë
5Â¥2010-05-18 21:15:50
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

butterfly7727

½ð³æ (³õÈëÎÄ̳)

¡ï ¡ï
sirljz(½ð±Ò+2):¾Ü¾ø¹¤¾ßÖ±½Ó·­ÒëµÄ»ØÌû 2010-05-20 17:33:08
ľ×ÓСľ³æ(½ð±Ò+3):лл½»Á÷£¡ 2010-05-20 17:33:25
ľ×ÓСľ³æ(½ð±Ò-3):ÆÀÔÄÖØ¸´ÁË£¬²»ºÃÒâ˼£¡ 2010-05-20 20:42:44
Abstract

Objective  The purpose of this subject is developping repaglinide dispersible tablets, aims to improve the bioavailability of drugs, improve compliance and the establishment of scientific and strict quality control standards. Repaglinide dispersible tablets have been sold to the U.S. Anshi Zhongshan pharmaceutical company. This article developed the Self-emusifying  microemulsion Capsules of repaglinide, aims to further improve the bioavailability of the drug and reduce drug side effects that may exist.
Methods (1) repaglinide dispersible tablets prescription and technology
Single-factor test to sift the types of supplementary material as an index of spread uniformity and dissolution rate; Orthogonal test  to optimize the amount of the supplementary material as an index to spread uniformity and dissolution rate; Ultimately determine the prescription.compared the equivalent incremental mixing method-wet granulation process, solvent dispersion mixing method-wet granulation process and the equal incremental mixing method -the powder pellets technology by Single-factor test to obtain optimized process.
(2) Determination of Repaglinide dispersible tablets
With the index of recovery and pH durability, compared three methods of determination of repaglinide tablets. Ultimately obtained the United States Pharmacopoeia method for the determination of repaglinide tablets is better. And according to the United States Pharmacopoeia method for the determination of repaglinide tablets, Established method for the determination of repaglinide dispersible tablets.
(3)Dissolution method for Repaglinide dispersible tablets
By sifting repaglinide dispersible tablets dissolution medium and rotation speed, Established a scientific and reasonable method of dissolution, and in vitro evaluation of  repaglinide dispersible tablets conducted.
(4)The related substances of Repaglinide dispersible tablets
By acid, alkali and heat damage tests, the may exist related substances of Repaglinide was separated, the purity of main drugs peak checked by Diode array detector. Establishment rigorous and scientific method of determination of related substances for repaglinide and repaglinide dispersible tablets.
(5) Accelerated stability of repaglinide dispersible tablets
6 months of accelerated stability test was used for the repaglinide dispersible tablets, And to predict the drug is valid for 2 years.
(6) Preparation repaglinide self- emusifying microemulsion Capsules
Orthogonal test and ternary phase diagram, with index of solubility, light transmittance, particle size index, selection prescription of repaglinide self-emusifying microemulsion capsules. And to evaluate the quality of repaglinide self-emusifying microemulsion capsules and preliminary stability study.
Results  (1)Repaglinide dispersible tablets
The reasonable prescription was obtained and easy manipulation and reliable quality control was achieved. And the prepared dispersible tablets met the pharmaceutical requirements. Repaglinide dispersible tablets compared with commercial products, dissolution rate and dissolution of 30min were significantly increased, initially to improve drug bioavailability purposes.
(2) Repaglinide self-emusifying microemulsion Capsules
The reasonable formulation was obtained and easy manipulation and reliable quality control was achieved for repaglinide self-emusifying microemulsion capsules. Compared with commercial products and general capsules, tablets, the release rate and the dissolution of 30min of repaglinide self-emusifying microemulsion capsules were significantly increased, initially to improve drug bioavailability purposes.
Keywords£ºRepaglinide; self-emulsifying drug delivery systems; orthogonal test; ternary phase diagram; Star points-response surface design
6Â¥2010-05-20 17:22:54
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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