请输入您要查询的英文单词:

 

单词 physostigmine
释义

physostigmine

/ˌfʌɪsəʊˈstɪɡmiːn /
noun [mass noun] Chemistry
A compound which is the active ingredient of the Calabar bean and is used medicinally in eye drops on account of its anticholinesterase activity.
  • A tricyclic alkaloid; chemical formula: C15H21N3O2.
Julian was interested in medicinal plants, particularly the Calabar bean whose active principle, physostigmine, was first isolated by the German chemists Jobst and Hesse in 1864....
  • The symptoms of anticholinergic overdose may be treated with physostigmine in a dosage of 1 to 2 mg given intramuscularly or intravenously at 20-minute intervals.
  • But since physostigmine could be isolated only from the Calabar bean, the drug was not readily available.

Origin

Mid 19th century: from the modern Latin genus name Physostigma (to which the Calabar bean belongs) + -ine4.

随便看

 

英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/12/23 18:17:17