Erdosteine

Erdosteine

Clinical data
ATC code	R05CB15 (WHO)
Identifiers
IUPAC name 2-[(2-oxothiolan-3-yl)carbamoylmethylsulfanyl]acetic acid
CAS Number	84611-23-4
PubChem CID	65632
E number	{{#property:P628}}
ECHA InfoCard	{{#property:P2566}}
Chemical and physical data
Formula	C8H11NO4S2
Molar mass	249.309 g/mol

Erdosteine is a mucolytic. Erdosteine is a thiol derivative developed for the treatment of chronic obstructive bronchitis, including acute infective exacerbation of chronic bronchitis. Erdosteine contains 2 blocked sulfhydryl groups which are released following first-pass metabolism. The 3 active metabolites exhibit mucolytic and free radical scavenging activity. Erdosteine modulates mucus production and viscosity and increases mucociliary transport, thereby improving expectoration. It also exhibits inhibitory activity against the effects of free radicals produced by cigarette smoke. Clinical studies in patients with chronic obstructive lung disease have demonstrated the efficacy and tolerability of erdosteine. Erdosteine 300mg twice daily reduced cough (both frequency and severity) and sputum viscosity more quickly and more effectively than placebo and reduced the adhesivity of sputum more effectively than ambroxol 30mg twice daily. Co-administration of erdosteine and amoxicillin in patients with acute infective exacerbation of chronic bronchitis resulted in higher concentrations of the antibiotic in the sputum, leading to earlier and more pronounced amelioration of clinical symptoms compared with placebo. Erdosteine is associated with a low incidence of adverse events, most of which are gastrointestinal and generally mild.

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