Patent ID: 9265837
Filing Date: 2016-02-23
CPC Classification: A61K,A61P,B82Y

Claim Text:
1. A method for preparing a composition, comprising (a) dissolving hydroxypropyl-β-cyclodextrin, 5α-androstane-3β,5,6β-triol and at least one additional soluble excipient in water for injection in sequence to obtain a raw injection solution, and (b1) subjecting the raw injection solution to decolorization, depyrogenation, filtration and sterilization, or (b2) subjecting the raw injection solution to decolorization, depyrogenation, filtration, filling a filtrate produced by the filtration into an ampoule, and freeze drying the filtrate in the ampoule to obtain the freeze drying powder, or (b3) subjecting the raw Injection solution to decolorization, depyrogenation, filtration, spray drying a filtrate produced by the filtration, and packaging the sterilized powder.