Steroid-17,17-lactol derivative drug, its use and containing the derivative

The invention relates to steroid-17,17-lactol derivatives having the general chemical formula I and tautomeric forms thereof with the general chemical formula Ia, wherein R The invention also relates to the use of these derivatives for the preparation of a medicament for oral contraception and for the treatment of pre-, peri- and post-menopausal disorders, and to pharmaceutical compositions containing such derivatives. The derivatives of the invention exhibit progestational and in preferred cases, also a antimineralkorticoide and neutral to slightly androgenic effect.