Cystagon (cysteamine bitartrate)
CYSTAGON® (cystamine bitartrate) Capsules for oral administration contain cysteine bitartrate, a cysteine reduction agent that reduces the cysteine content of cells in patients with cystinosis, an inherited defect of lysosomal transport. CYSTAGON® (cysteamine bitartrate) is the bitartrate salt of cysteamine, an aminothiol, beta-mercaptoethylamine. Cysteamine bitartrate is a highly water-soluble white powder with a molecular weight of 227 and the molecular formula C2H7NS • C4H6O6. It has the following chemical structure Each CYSTAGON® (cysteamine bitartrate) Capsule contains 50 mg or 150 mg of cysteamine free base as cysteamine bitartrate. CYSTAGON® (cysteamine bitartrate) Capsules contain the accompanying dormant fixings: colloidal silicon dioxide, croscarmellose sodium, D&C yellow no. 10 aluminum lake, FD&C blue no. 1 aluminum lake, FD&C blue no. 2 aluminum lake, FD&C red no. 40 aluminum lake, gelatin, magnesium stearate, microcrystalline cellulose, drug c...