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，个药必须每天注射次。而苄星青霉素则天注射次。

The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

以苯乙酸乙酯和乙醇胺为原料合成了苄青霉素低毒前体苯乙酰基乙醇胺。