Modified release ibuprofen dosage form

A - Human Necessities – 61 – K

Patent

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Details

A61K 9/20 (2006.01) A61K 9/14 (2006.01) A61K 9/22 (2006.01)

Patent

CA 2582150

The present invention is a solid dosage form for oral administration of ibuprofen comprising a modified release formulation of ibuprofen which provides an immediate burst effect and thereafter a sustained release of sufficient ibuprofen to maintain blood levels at least 6.4 ~g/ml over an extended period of at least 8 hours following administration of a single dose. The dosage form releases ibuprofen at a rate sufficient to initially deliver a effective amount of ibuprofen within about 2.0 hours following administration. The dosage form then subsequently delivers the remaining amount of ibuprofen at a relatively constant rate sufficient to maintain a level of ibuprofen over a predetermined delivery period of for at least 8 hours.

La présente invention concerne une forme posologique solide d'ibuprofène destinée à être administrée par voie orale, générant une effet de décharge immédiat puis une libération prolongée d'une quantité suffisante d'ibuprofène afin de maintenir la concentration sanguine à au moins 6,4 ?g/ml sur une durée étendue d'au moins 8 heures suivant l'administration d'une dose unique. Ladite forme posologique libère l'ibuprofène selon un débit suffisant pour la distribution initiale d'une quantité efficace d'ibuprofène au bout de 2,0 heures environ suivant l'administration. La forme posologique distribue alors ensuite la quantité restante d'ibuprofène selon un débit relativement constant, suffisant pour maintenir le niveau d'ibuprofène sur une durée d'administration prédéterminée d'au moins 8 heures.

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