| abstract |
The invention concerns pharmaceutical preparations containing estra-1,3,5(10)-triene derivatives as active ingredients which carry a group of the general formulaat their C3 position whereinR is a R<1>R<2>N group whereinR<1 >and R<2 >are independent of each other and represent a hydrogen atom, a C1-C5 alkyl radical or, together with the N atom, a polymethylene imino radical containing 4 to 6 C atoms, or a morpholino radical.The preparations according to the invention can be used for hormonal contraception and for hormon replacement therapy (HRT). They exhibit a low hepatic estrogenity. |