APPLICATION OF 18-METHYL-15SS,16SS-METHYLENE-19-NOR-20-SPIROX-4-EN-3-ONE SYSTEMS IN THE TREATMENT OF MENORRHAGIA, AS WELL AS INTRAUTERINE SYSTEMS CONTAINING 18-METHYL-15SS,16SS-METHYLENE-19-NOR-20-SPIROX-4-EN-3-ONE FOR TREATING UTERINE BLEEDING DISORDERS

摘要

The present invention describes intrauterine use of 18-methyl-15,16-methylene-19-nor-20-spirox-4-en-3-ones of the general formula (1) wherein R6 and R7 are hydrogen or a methylene group, in the treatment of menorrhagia, of uterine haemorrhages in general, and an intrauterine system for said use, comprising a compound of formula 1.