Pharmaceutical carrier formulation

A - Human Necessities – 61 – K

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A61K 9/16 (2006.01) A61K 9/48 (2006.01)

Patent

CA 2388471

This invention provides carrier systems useful in preparing pharmaceutical formulations, the systems comprising, by weight percentage, from about 1 % to about 20 %, preferably from about 5 % to about 12 %, of a surfactant component; from about 55 % to about 93 %, preferably from about 60 % to about 85 %, of a component of one or more polyethylene glycols (PEG); and from about 1 % to about 25 %, preferably from about 5 % to about 15 %, of one or more sucrose fatty acid esters or polyvinylpyrrolidone (PVP) with a K value between about 15 and about 90, preferably with a K value of from about 16 to about 18, most preferably about 17, as defined in USP/NF, or a combination of one or more sucrose fatty acid esters or PVP, and, optionally, one or more pharmaceutically acceptable preservatives or antioxidants, such as BHA, BHT, ascorbyl palmitate or benzyl alcohol.

L'invention concerne des systèmes de transport convenant dans la préparation de formulations pharmaceutiques, ces systèmes comprenant, en pourcentage pondéral, environ 1 % à environ 20 %, de préférence environ 5 % à environ 12 %, d'un composant tensio-actif, environ 55 % à environ 93 %, de préférence environ 60 % à 85 %, d'un composant de un ou de plusieurs polyéthylèneglycol (PEG), et environ 1 % à environ 25 %, de préférence environ 5 % à environ 15 %, de un ou de plusieurs esters d'acides gras de sucrose ou de polyvinylpyrrolidone (PVP) à valeur K située entre environ 15 et environ 90, de préférence environ 16 et environ 18, et plus avantageusement, environ 17, tel que défini dans le USP/NF, ou un mélange de un ou de plusieurs esters d'acides gras de sucrose ou de PVP, et, éventuellement, un ou plusieurs conservateurs ou antioxydants acceptables, tels que BHA, BHT, palmitate d'ascorbyle ou alcool phénétylique.

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