Regents of the University of Minnesota

William B Rathbun

Herbert T Nagasawa

Jonathan F Cohen

A pharmaceutical unit dosage form comprising an amount of a compound of the formula: ##STR1## is provided wherein R.sup.1 is a (C.sub.1 -C.sub.20)alkyl group, a (C.sub.6 -C.sub.12)aryl group, or a C.sub.3 -C.sub.18)cycloalkyl group and R.sup.2 is H or a (C.sub.1 -C.sub.19)alkyl group, a (C.sub.6 -C.sub.12)aryl group, a (C.sub.7 -C.sub.13)arylalkoxy group, a (C.sub.1 -C.sub.6)alkyoxy group, a (C.sub.3 -C.sub.18)cycloalkyl group, a ##STR2## group, or a --CH(R.sup.3)NH.sub.2 group wherein R.sup.3 is a side chain of a natural amino acid, and the pharmaceutically acceptable salts thereof; in combination with a pharmaceutically acceptable carrier, wherein said amount is effective to increase the concentration of glutathione in tissue.

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Bloomington, MN, United States of America

William B Rathbun