Mesna in i.v. formulations used for the prophylaxis of urothelial toxicity are classified in this group. Mesna used as a mucolytic agent (e.g. administered by a nebuliser) is classified in R05CB.
Rasburicase is classified here, other agents (e.g. febuxostat) for treatment of hyperuricaemia, see M04AA.
Glutathione is classified in V03AB - Antidotes.