[Therapeutics basis of threatened abortions (author's transl)].

The diverse hormonal and vascular medications are studied in the way of their mechanism of action, of their efficiency and their side effects on the mother as well as on the fetus. Neither definite argument, nor important statistical study has been made after elimination of all genetics and chromosomic anomalies. beta-mimetic, alphablocking and progesterone medications are the most efficient and certainly the less dangerous for the fetus.