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Article in Chinese | WPRIM | ID: wpr-578483

ABSTRACT

Objective To prepare the sinomenine hydrochloride multivesicular liposomes with high entrapment efficiency and sustained release character.Methods Multiple emulsion method was used to prepare the sinomenine hydrochloride multivesicular liposomes.Uniform design was applied to optimize the formulation and pharmaceutical process.The shape,the particle size,and the release charcter of the liposome were evaluated.Results The sinomenine hydrochloride multivesicular liposomes prepared were spherical and the size of majority particles was in the range of 20—30 ?m and well distributed.The encapsulation efficiency was more than 80% and its in-vitro release profile accorded well with the Higuchi model with t1/2 up to 52.7 h.Conclusion The formulation and pharmaceutical process of the sinomenine hydrochloride multivesicular liposomes are stable and feasible with the high encapsulation efficiency and good sustained-release character.

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