Solid oral dosage form containing seamless microcapsules

A - Human Necessities – 61 – K

Patent

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Details

A61K 9/50 (2006.01) A61K 9/54 (2006.01)

Patent

CA 2520660

This invention relates to a solid oral dosage form containing one or more pharmaceutically active ingredients solubilised or suspended in a pharmaceutically acceptable solvent or liquid phase and encapsulated in seamless controlled release microcapsules. Accordingly the pharmaceutically acceptable solvent or liquid phase may range from aqueous phase, organic solvent(s), glycols, oils and derivatives of including mono-,di, and trigycerides of short, medium and long chain fatty acids. The microcapsules have a diameter of <1mm to 8mm and a drug loading of up to 90%. Additionally the microcapsules may be coated to release the pharmaceutically active ingredient at specific sites and for predetermined rates.

L'invention concerne une forme posologique solide s'administrant par voie orale qui contient un ou plusieurs principes pharmaceutiquement actifs solubilisés ou en suspension dans un solvant ou une phase liquide pharmaceutiquement acceptables, et est encapsulée dans des microcapsules sans soudure à libération contrôlée. Le solvant ou la phase liquide pharmaceutiquement acceptables peuvent comprendre une phase aqueuse, un ou des solvant(s) organiques, des glycols, des huiles et des dérivés incluant des monoglycérides, des diglycérides et des trigycérides d'acides gras à chaîne courte, moyenne et longue. Les microcapsules ont un diamètre compris entre moins de 1 mm et 8 mm, et une charge de médicament pouvant atteindre 90 %. De plus, les microcapsules peuvent être enrobées en vue de libérer le principe pharmaceutiquement actif à des sites spécifiques et/ou à des vitesses prédéterminées.

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