[ pen-uh-sil-uh-meen, -min ]
/ ˌpɛn əˈsɪl əˌmin, -mɪn /

noun Pharmacology.

a chelating agent, C5H11NO2S, produced by the degradation of penicillin, used in the treatment of severe rheumatoid arthritis and in heavy metal poisoning.

Origin of penicillamine

First recorded in 1940–45; penicill(in) + -amine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for penicillamine


[ pĕn′ĭ-sĭlə-mēn′ ]


A degradation product of penicillin that is used as a chelating agent and in the treatment of rheumatoid arthritis and copper poisoning.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.