The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.
以苯酸醇胺为原料合成了苄青霉素低毒前体苯酰醇胺。
However if one uses the penG procaine the injections must be givenevery day. Bicillin with the benzathine component is given every otherday.
不论如何，如果你使用普鲁卡因青霉素，个药必须每天注射一次。而苄星青霉素则需要两天注射一次。
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Leptospirosis is treated with penicillin G, and doxycycline can be used as an alternative.
钩端螺旋体病的治疗主要施用抗生苄青霉，西环可作备选。
But recent shortages in the supply of the drug benzathine penicillin made it more difficult to control syphilis, the WHO study said.
世卫组织的研究称，最近苄星青霉供应短缺，导致控制梅毒病情的难度加大。
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详细解释
酸
醇胺为原料合成了苄青霉素低毒前体苯酰
醇胺。
，
个药必须每天注射一次。而
西环
备选。
世卫组织的研究称，最近
