Eliminationen af uændret cysteamin i urinen har vist sig at ligge i området mellem 0, 3% og 1, 7% af den totale daglige dosis hos fire patienter; hovedparten af cysteamin bliver udskilt som sulfat.
The elimination of unchanged cysteamine in the urine has been shown to range between 0.3% and 1.7% of the total daily dose in four patients; the bulk of cysteamine is excreted as sulphate.