Method of preparing controlled-release preparations for biologic

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Liposomes

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264 41, 264 43, 264 46, A61K 9127

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active

057532591

ABSTRACT:
A method and product for preparing a controlled-release composition are provided. The method comprises formation of a mixture containing at least one amphiphilic substance capable of forming a liquid crystalline phase, in contact with a liquid selected from the group consisting of water, glycerol, ethylene glycol, propylene glycol and mixtures thereof. The method includes a step of providing in such mixture a bioactive material.

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