the urinary excretion of s-methyl-d-penicillamine , cysteine-penicillamine disulfide , penicillamine disulfide , and a newly identified metabolite , homocysteine-penicillamine disulfide , has been quantitated for patients with rheumatoid arthritis , cystinuria , and wilson 's disease .
C0030817
penicillamine
C0003873
rheumatoid arthritis