Australian Approved Name (AAN): Cysteine hydrochloride monohydrate
Common names and synonyms: L-Cysteine hydrochloride monohydrates
Molecular formula: C3H7NO2S.HCl.H2O
Molecular weight: 175.63
Maximum daily dose: The maximum recommended daily dose must contain no more than 652 mg of cysteine hydrochloride monohydrate. When cysteine, cystine and/or their salts are used in combination, the medicine must not provide more than a total of 450 mg cysteine per maximum recommended daily dose.
Warnings and Restrictions: When used as an excipient, permitted for use only in combination with other permitted ingredients as part of a flavour proprietary excipient and the total flavour proprietary excipient formulation concentration in a medicine must not be more than 5%.
Allowable purpose of the ingredient: Active, Excipient
TGA reference: United States Pharmacopeia_(Incorporating the National Formulary)