Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Slow-release composition containing L-milnacipran and preparation method thereof

A technology of lev-milnacipran and sustained-release composition, which is applied in the field of sustained-release composition containing lev-milnacipran and its preparation, can solve the problem of inability to achieve consistent release behavior, low production efficiency, poor stability, etc. problem, to achieve the effect of easy promotion, simple production and good stability

Active Publication Date: 2013-05-08
葛亚伯
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention patent application with the application number CN97198442.5 discloses a galenic preparation for prolonged release of milnacipran, the microparticles of which contain hydroxypropyl methylcellulose, and a layer of acrylic resin film is distributed outside it, or use Acrylic resin coating, in which the acrylic resin and the components of milnacipran microparticles work separately, this preparation cannot achieve the same release behavior in gastric juice and intestinal juice
And with the application of large-scale production, some problems have also appeared: the loss rate is relatively large; the production efficiency is low (the output is only 60-100kg per day); it is mainly based on membrane control, and the stability is not good; the requirements for workers to operate Higher, requiring longer training sessions to master

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Slow-release composition containing L-milnacipran and preparation method thereof
  • Slow-release composition containing L-milnacipran and preparation method thereof
  • Slow-release composition containing L-milnacipran and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060]

[0061] Mix levomilnacipran with calcium hydrogen phosphate and hypromellose K4M evenly, and set the mixing speed at 20-50 rpm; add 5% hypromellose aqueous solution to prepare wet granules, and granulate Stirring speed is set as: 20-50 rpm, cutting knife speed is 30-80 rpm; the above wet particles are boiled and dried, the drying temperature is set at 50-90 degrees, and the drying time is 10-30 minutes; Arrange the dried granules to obtain uniform dry granules, then add magnesium stearate and mix evenly, the mixing speed is 10-30 rpm, and the mixing time is 5-30 minutes; press the above mixture into tablets, The speed is 10-50 rpm, and the hardness is controlled at 5-13kg.

[0062] In this case, only hypromellose was used as the skeleton material, calcium hydrogen phosphate was used as the filler, and no pH regulator was used.

[0063] Take this product, according to the release test method (Chinese Pharmacopoeia 2010 edition two appendix X D first method), using t...

Embodiment 2

[0068] This embodiment is only used for comparison and description, and is not the content of the present invention.

[0069]

[0070] Mix levomilnacipran with calcium hydrogen phosphate and acrylic resin evenly, and set the mixing speed at 20-50 rpm; add 5% hydroxypropyl cellulose aqueous solution to prepare wet granules, and set the stirring speed for granulation to It is: 20-50 rev / min, cutting knife rotating speed is 30-80 rev / min; the above-mentioned wet granules are boiled and dried, the drying temperature is set at 50-90 degrees, and the drying time is 10-30 minutes; the dried Granules are arranged to obtain uniform dry granules, then magnesium stearate is added and mixed evenly, the mixing speed is 10-30 rpm, and the mixing time is 5-30 minutes; the above mixture is pressed into tablets, and the tableting speed is 10-30 minutes. 50 rpm, the hardness is controlled at 5-13kg.

[0071] In this case, only acrylic resin is used as the skeleton material, and calcium hydr...

Embodiment 3

[0078]

[0079] Mix levomilnacipran with calcium hydrogen phosphate and hypromellose K100M evenly, set the mixing speed at 20-50 rpm; then add acrylic resin (NE30D) and mix evenly, then add 5% hydroxyl The aqueous solution of propyl cellulose prepares wet granules, and the stirring speed of granulation is set as: 20-50 rpm, and the cutting knife rotating speed is 30-80 rpm; the above-mentioned wet granules are boiled and dried, and the drying temperature is set at 50-50 rpm. 90 degrees, the drying time is 10-30 minutes; arrange the dried granules to obtain uniform dry granules, then add magnesium stearate and mix evenly, the mixing speed is 10-30 rpm, and the mixing time is 5-30 minutes ; The above mixture is compressed into tablets, the tableting speed is 10-50 rpm, and the hardness is controlled at 5-13kg.

[0080] In this prescription, hypromellose is used as the skeleton material, calcium hydrogen phosphate is used as the filler, and acrylic resin (NE30D) is used as the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a slow-release composition containing L-milnacipran and a preparation method thereof. The composition contains the L-milnacipran serving as an active ingredient or pharmaceutically acceptable salt thereof. The composition is characterized by also comprising high-viscosity hydroxypropyl methylcellulose serving as a hydrophilic gel slow-release skeleton material and acrylic resin serving as a pH adjustor, wherein the composition comprises the following components in parts by weight: 10 to 70 parts of L-milnacipran or pharmaceutically acceptable salt, 5 to 30 parts of hydroxypropyl methylcellulose, and 3.5 to 7.5 parts of acrylic resin; and during preparation, the L-milnacipran, the hydroxypropyl methylcellulose and the acrylic resin are bound to be mixed uniformly. The composition can realize consistency of release behaviors in artificial gastric juice and artificial intestinal juice and keep 12-hour continuous release effect, and is low in preparation loss, high in efficiency, high in stability, easy to operate and easy to popularize.

Description

[0001] This application is a divisional application with the patent application number "201210323131.4", the filing date is September 4, 2012, and the title of the invention is "a slow-release composition containing levomilnacipran and its preparation method". technical field [0002] The invention relates to the technical field of pharmaceutical preparations, in particular to a sustained-release composition containing levomilnacipran and a preparation method thereof. Background technique [0003] L-milnacipran entered clinical phase III in the United States in November 2009. L-milnacipran is the latest generation of antidepressant drugs at home and abroad. [0004] Pharmacokinetic studies show that Levomilnacipran is rapidly absorbed after oral administration, and the blood concentration reaches its peak in about 1-2 hours, with a short elimination half-life. Ordinary Levomilnacipran tablets usually need to be taken 3 times a day to maintain the treatment. Therefore, it is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61K9/28A61K9/22A61K9/16A61K9/08A61K9/52A61K31/165A61K47/38A61K47/32A61P25/24
Inventor 葛亚伯
Owner 葛亚伯
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com