Which anticoagulant medication is considered safe for administration during pregnancy?

Heparin sodium is considered safe for administration during pregnancy because it does not cross the placenta, meaning it has a minimized risk of affecting the developing fetus. Unlike oral anticoagulants such as Warfarin sodium and Dicumarol, which are known to be teratogenic and can cause adverse effects on fetal development, heparin is often used for pregnant patients who require anticoagulation therapy, such as those with a history of thrombosis or certain clotting disorders.

Heparin is also effective for managing conditions like venous thromboembolism while ensuring the safety of both the mother and the fetus. The low molecular weight heparins (LMWH), a subclass of heparin, are frequently used as they have similar efficacy and an even better safety profile in pregnancy compared to unfractionated heparin.

Therefore, heparin sodium stands out as an appropriate choice during pregnancy, as it can provide necessary anticoagulation without posing significant risks to the fetus.