Medicament sustained-release particles and method for...

A - Human Necessities – 61 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61K 31/522 (2006.01) A61K 9/14 (2006.01) A61K 47/14 (2006.01) A61K 47/22 (2006.01) A61K 47/38 (2006.01)

Patent

CA 2529475

It is intended to provide sustained theophylline-release particles that are sustained theophylline-release particles comprising a polyglycerol fatty acid ester as a matrix base, having a uniform cored particle structure, being able to effectively masking the unpleasant taste of the drug and having excellent properties of controlling the release (elution) of the drug and a high storage stability. More specifically speaking, a process for producing sustained theophylline-release particles characterized by comprising heating a matrix base containing a polyglycerol fatty acid ester, theophylline and ethyl cellulose to give a liquid mixture, spray-cooling the liquid mixture to give spherical cored particles having an average particle size of 250 µm or less and then melt-coating the cored particles with a fine powder, etc.

L'invention concerne des particules à libération prolongée de théophylline qui comprennent un ester d'acide gras de polyglycérol comme matrice de base, présentent une structure uniforme de particules à noyau qui permet de masquer efficacement le goût désagréable du médicament, et possèdent d'excellentes propriétés de régulation de la libération (élution) du médicament ainsi qu'une stabilité élevée au stockage. Plus spécifiquement, l'invention concerne un procédé de production de particules à libération prolongée de théophylline, caractérisé en ce qu'il comporte l'étape consistant à chauffer une matrice de base contenant un ester d'acide gras de polyglycérol, la théophylline et de l'éthyl cellulose pour former un mélange liquide ; refroidir par atomisation le mélange liquide pour former des particules sphériques à noyau qui présentent un taille moyenne de particules inférieure ou égale à 250 µm ; et enrober ensuite par fusion les particules à noyau à l'aide d'une poudre fine, etc.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Medicament sustained-release particles and method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Medicament sustained-release particles and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Medicament sustained-release particles and method for... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1852087

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.