Antivenin (latrodectus mactans) (equine) (monograph) Pregnancy Warnings
Animal studies have not been conducted. There are no controlled data in human pregnancy.
US FDA pregnancy category C: Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.
Use is not recommended unless clearly needed.
US FDA pregnancy category: C
See references
