True about the teratogenicity of a drug is all except:
Teratogenjcity is the development of characteristic set of malformations by the use of a drug during pregnancy. Different drugs have specificity for a particular phase of development of fetus. The risk of teratogenesis is dose dependent. Heparin cannot cross the placenta and is thus safe during pregnancy.
Characteristic set of malformations indicating selectivity for certain target organs is seen
Heparin is highly teratogenic drug
Related to the dose of the teratogenic drug
Affects specifically at a particular phase of development of the fetus