Method of increasing testosterone

摘要

The use of a compound of the formula (I) or of a pharmaceutically acceptable salt thereof: wherein:- R<1> and R<2> may be the same or different provided that, when R<1> and R<2> are the same, each is a methyl or ethyl group, and, when R<1> and R<2> are different, one of them is a methyl or ethyl group and the other is hydrogen or a benzyl group; for the manufacture of a medicament for increasing serum levels of testosterone.