Glutathione derivatives and their dosage forms

Abstract

A glutathione derivative having a dramatically enhanced hematopoiesis promoting effect in the living body, said derivative being represented by the formula (I): 1 wherein, A represents H or a C1-C20 acyl group, R1 represents a C1-C26 alkyl group or a C3-C26 alkenyl group, and R2 represents H, a C1-C26 alkyl group, or a C3-C26 alkenyl group, provided that cases in which R1 represents a C1-C10 alkyl group or a C3-C10 alkenyl group and R2 represents H, a C1-C10 alkyl group, or a C3-C10 alkenyl group are excluded, a salt of said glutathione derivative, or a colloidal composition that enables the safe and effective development of the effects of said glutathione derivative in the living body.

Dependencies are inferred from the claim text.