different between pyridostigmine vs physostigmine

English

Etymology

From pyrid(ine) +? -o- +? -stigmine (“acetylcholinesterase inhibitor”).

Pronunciation

• (Received Pronunciation) IPA^(key): /?p?.??.d???st??.mi?n/, /?p?.??d.??st??.mi?n/
• (General American) IPA^(key): /?p??.?.do??st???min/

Noun

pyridostigmine (uncountable)

1. (pharmacology) A parasympathomimetic and reversible cholinesterase inhibitor, used to treat muscle weakness and to combat the effects of curariform drug toxicity.

Derived terms

• pyridostigmine bromide

Related terms

• neostigmine

References

• “pyridostigmine”, in Lexico, Dictionary.com; Oxford University Press, 2019–present.
• “pyridostigmine”, in Merriam–Webster Online Dictionary, (Please provide a date or year).

English

Etymology

From translingual Physostigma venenosum (“the Calabar bean”) +? -ine.

Pronunciation

• (Received Pronunciation) IPA^(key): /?f??.s???st??.mi?n/
• (General American) IPA^(key): /?fa?.s??st???min/

Noun

physostigmine (countable and uncountable, plural physostigmines)

1. (biochemistry, pharmacology) A parasympathomimetic, a reversible cholinesterase inhibitor alkaloid of the Calabar bean, used to treat certain medical conditions. [from 19th c.]
   • 1985, Wade Davis, The Serpent and the Rainbow, Simon & Schuster, p. 40:

     The substance is physostigmine, a drug first isolated from the Calabar bean (Physostigmine venenosum), a climbing liana that grows in swampy coastal areas of West Africa from Sierra Leone south and east as far as the Cameroons.

Derived terms

• -stigmine (“acetylcholinesterase inhibitor”)

References

• “physostigmine”, in Lexico, Dictionary.com; Oxford University Press, 2019–present.
• “physostigmine”, in Merriam–Webster Online Dictionary, (Please provide a date or year).