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1. FR2887455 - FORMULATION A LIBERATION PROLONGEE DE PRINCIPES ACTIFS DE MEDICAMENTS

Office France
Application Number 0506539
Application Date 28.06.2005
Publication Number 2887455
Publication Date 29.12.2006
Grant Number 2887455
Grant Date 10.08.2007
Publication Kind B1
IPC
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
33
Heterocyclic compounds
395
having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins
435
having six-membered rings with one nitrogen as the only ring hetero atom
4353
ortho- or peri-condensed with heterocyclic ring systems
437
the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9
Medicinal preparations characterised by special physical form
20
Pills, lozenges or tablets
22
Sustained or differential release type
24
Layered or laminated unitary dosage forms
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
P
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
25
Drugs for disorders of the nervous system
20
Hypnotics; Sedatives
A61K 31/437
A61K 9/24
A61P 25/20
CPC
A61K 9/2013
A61K 9/2054
A61K 9/209
A61K 31/437
Applicants SANOFI AVENTIS SA
Inventors ANDRE FREDERIC
ALAUX GERARD
LEWIS GARETH
SERRE VERONIQUE
Priority Data 0506539 28.06.2005 FR
Title
(FR) FORMULATION A LIBERATION PROLONGEE DE PRINCIPES ACTIFS DE MEDICAMENTS
Abstract
(FR)
L'invention concerne une nouvelle formulation p our u ne I ibération prolongée d'un principe actif présentant une solubilité dépendante du pH.La formulation de l'invention comprend un excipient matriciel à base de polymère hydrophile renfermant une dose déterminée de principe actif, et comprend également un ou plusieurs agents acidifiants sous forme d'un sel acide d'un acide organique.