Summary
The metabolism of an oral dose of S-carboxymethylcysteine (SCMC) has been studied in man; the principal urinary component after 24 h was the unchanged compound (29.4-83.7%, 20 subjects). Marker variation was found between individuals; SCMC sulphoxide, S-methylcysteine, N-acetyl-S-carboxymethylcysteine, N-acetyl-S-methylcysteine with the corresponding sulphoxides and dicarboxymethyl-sulphide were also found as metabolites.
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Waring, R.H. Variation in human metabolism of S-carboxymethylcysteine. European Journal of Drug Metabolism and Pharmacokinetics 5, 49–52 (1980). https://doi.org/10.1007/BF03189444
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DOI: https://doi.org/10.1007/BF03189444