Ndosh; ndosh; and the following: 4; ndosh; ndosh; ndosh; ndash; 6:1:4; 6; 6; 6; 6; 6:1:1:1; 6; 6; 6:1:1, er And use in contraception and Gynecology

摘要

The present invention describes the intrauterine use of 18methyl15ß, 16ßmetilen19nor20espirox4en3onas of the general formula (1) formula (1) in contraception gynecological therapy, as well as an intrauterine system containing compounds of formula 1.