Metkephamid acetate (ester) is an analgesic agent. Metkephamid acetate (ester) is discontinued (DEA controlled substance). References: Calimlim JF, Wardell WM, Sriwatanakul K, Lasagna L, Cox C. Analgesic efficacy of parenteral metkephamid acetate in treatment of postoperative pain. Lancet. 1982 Jun 19;1(8286):1374-5. PubMed PMID: 6123675.

纯度：≥98%

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