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Antivenin (black widow spider) Pregnancy and Breastfeeding Warnings

Antivenin (black widow spider) is also known as: Antivenin (Latrodectus Mactans)

Antivenin (black widow spider) 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

Antivenin (black widow spider) Breastfeeding Warnings

Caution is recommended.

Excreted into human milk: Unknown
Excreted into animal milk: Data not available

See references

References for pregnancy information

  1. "Product Information. Antivenin (Latrodectus mactans) (antivenin (black widow spider))." Merck & Co., Inc (2022):

References for breastfeeding information

  1. "Product Information. Antivenin (Latrodectus mactans) (antivenin (black widow spider))." Merck & Co., Inc (2022):

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.