True about the teratogenicity of a drug is all except:
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
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.