Genetically determined impaired drug sulphoxidation.
D000483:Alleles; D002233:Carbocysteine / Q000378:metabolism*; D003545:Cysteine / Q000031:analogs & derivatives*; D006801:Humans; D010641:Phenotype; D013454:Sulfoxides / Q000378:metabolism*
D013454:Sulfoxides; D002233:Carbocysteine; D003545:Cysteine