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Its derived from the naturally occurring peptide in the bodys gastric juice

et al., Molecules, 2014

Conjugation of cysteine and its derivatives (including NAC) to polymers (hyaluronic acid, chitosan, alginate, polyesters, polyurethanes, poly(ethylene glycol), poly(acrylic acid), polycarbophil, and carboxymethyl cellulose) significantly increased their tissue adhesion, particularly mucoadhesion, stability at physiological pH, drug encapsulation efficiency, drug release, and drug permeation

It was developed in Russia by the Institute of Molecular Genetics

It is administered either intramuscularly or intravenously by healthcare professionals, strictly according to a physicians guidance