Alston & Bird LLP
Non-addictive analgesic sustained-release drug delivery system and preparation method thereof
A non-addictive analgesic sustained-release drug delivery system, comprising: (1) a narcotic analgesic drug having a concentration of 1 mg/ml-160 mg/ml, the drug being selected from a group consisting of: a local analgesic drug, and the combination of the local analgesic drug and a nonsteroidal analgesic drug and/or an opioid analgesic drug; (2) a drug menstruum in a proportion of 1%-75% (v/v), the menstruum being selected from a group consisting of benzyl alcohol, ethanol, benzyl benzoate, ethyl lactate, and tetrahydrofurfuryl polyethylene glycol ether; and (3) a drug sustained-release formulation having a proportion of 25%-99% (v/v), the sustained-release formulation being selected from a group consisting of natural vegetable oil, synthetic lipid, artificially improved half-natural lipid and derivative thereof. Also disclosed are a preparation process and use of the sustained-release drug delivery system.
LIPONT PHARMACEUTICALS INC.
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inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional
Danfeng Wudang Weiping Qinyuan Qingchuan Weijiao Jianli Tao
Kong Lu Yu Wu Zhao Wang Gao Chen