[Cystine stone therapy with mercapto-propyonyl-glycine (MPG) (Thiola) (author's transl)].

Six patients with recurrent cystine stones and cystinuria were treated with MPG. Three patients were treated for 3 years and 3 patients for 6 months. A relatively high dosage resulted in a reduction of the cytinuria. Since MPG has almost no side effects it represents a valuable aid in the treatment of cystine stones.