Abuse-resistant controlled-release opioid dosage form

A - Human Necessities – 61 – K

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A61K 9/20 (2006.01) A61K 31/485 (2006.01)

Patent

CA 2446550

Abuse-resistant, controlled release opioid tablets in combination containing an opioid antagonist such as naloxone at a level above that needed to suppress the euphoric effect of the opioid, if the combination were crushed to break the controlled release properties causing the opioid and opioid antagonist to be released as a immediate release product as a single dose. The controlled release nature of the table prevents the accumulation of orally effective amounts of opioid antagonist when taken normally. The opioid antagonist is contained in a controlled-release matrix and released, over time, with the opioid.

L'invention concerne des comprimés d'opioïdes à libération prolongée empêchant la consommation abusive. Ces comprimés sont une combinaison d'un antagoniste opioïde, tel que la naloxone, à un niveau supérieur au niveau nécessaire à la suppression de l'état euphorique provoqué par l'opioïde, si le comprimé devait être broyé de manière à perdre ses propriétés de libération prolongée, entraînant ainsi la libération immédiate de l'opioïde et de l'antagoniste opioïde en une seule dose. La caractéristique de libération prolongée du comprimé empêche l'accumulation de quantités oralement efficaces d'antagoniste opioïde lors d'une prise normale. L'antagoniste opioïde est contenu dans une matrice à libération prolongée; il est libéré au fil du temps avec l'opioïde.

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