发明授权
US4717718A Device for the controlled delivery of a beneficial agent 失效
用于受控交付有益药剂的装置

Device for the controlled delivery of a beneficial agent
摘要:
A device for the controlled delivery of a beneficial agent is disclosed. The device comprises (a) a formulation layer and (b) a layer comprising means for pushing the formualtion layer from said device. The formulation layer comprises the beneficial agent avermectin or ivermectin.
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