ElcysActive Ingredient(s): Cysteine Hydrochloride
FDA Approved: * April 16, 2019
Pharm Company: * EXELA PHARMA SCS LLC
Category: Neonatal (Infant)
Cysteine (symbol Cys or C; /sstin/) is a semiessential proteinogenic amino acid with the formula HOOC-CH-(NH2)-CH2-SH. The thiol side chain in cysteine often participates in enzymatic reactions as a nucleophile. The thiol is susceptible to oxidation to give the disulfide derivative cystine, which serves an important structural role in many proteins. When used as a food additive, it has the E number E920. It is encoded by the codons UGU ... [wikipedia]* May have multiple approval dates, manufacturers, or labelers.