The human pregnancy data reported for these 16 agents are very limited as only 8 of the drugs have this data. However, the 8 reports indicated that the use of these drugs was highly important for the mother and did not cause embryo/fetal harm.
- Acetylcysteine
The need for this antidote in a pregnant or lactating woman is most likely a rare requirement. However, the need for this agent does occur in women who have taken a potentially hepatic toxic dose of acetaminophen (e.g., Tylenol).
- Black widow spider antivenin
Only three reports of the use of this agent in a pregnant woman have been located. In each case, the symptoms from the spider bite did not respond to other therapies but did within 1 hour to the antivenin. There was no fetal harm in these cases.
Gerald G. Briggs
- Deferasirox
This agent is an oral iron-chelating agent used for the treatment of chronic iron overload. Five case reports have described its use without causing any fetal harm.
- Deferoxamine
This agent has been used in more than 65 pregnancies for acute iron overdose or for transfusion-dependent thalassemia. No reports have observed adverse human developmental effects.
- Digoxin immune FAB (ovine)
Several reports have described the use of this agent in pregnancy. No fetal harm has been observed, but none of the reports involved exposure during organogenesis. However, in cases of digoxin overdose, the maternal benefits of therapy should take priority over the embryo/fetus.
- Dimercaprol
Although the limited animal data suggest low risk, there are no reports of the use of this drug in human organogenesis. The absence of data prevents an assessment of the embryo-fetal risk, but the maternal benefit and indirect embryo-fetal benefit appears to outweigh that risk.
- Edetate calcium disodium
This agent is used to treat acute or chronic lead poisoning. It is compatible in pregnancy because the maternal and possibly the embryo-fetal benefit appears to outweigh any unknown direct or indirect risks.
- Flumazenil
The use of this drug in the third trimester has been reported in two cases. Because the drug is indicated to reverse the effects of benzodiazepines on the central nervous system, the maternal benefit should far outweigh the unknown embryo-fetal risk.
- Glucagon
The embryo-fetal risks appear to be very low. Apparently, the drug does not cross the placenta.
- Glucarpidase
This drug is indicated for the treatment of methotrexate toxicity. There are no reports describing the use of this drug in pregnancy or during breastfeeding.
- Idarucizumab
This agent is a humanized monoclonal antibody fragment that is indicated for the reversal of the anticoagulant effects of dabigatran. No reports describing its use in human or animal pregnancy have been located. However, the maternal benefit appears to be high and probably outweighs the unknown risk to the embryo/fetus.