Skip to main content

Antivenin (Latrodectus Mactans) Side Effects

Generic name: antivenin (black widow spider)

Medically reviewed by Drugs.com. Last updated on Aug 11, 2024.

Note: This document provides detailed information about Antivenin (Latrodectus Mactans) Side Effects associated with antivenin (black widow spider). Some dosage forms listed on this page may not apply specifically to the brand name Antivenin (Latrodectus Mactans).

Applies to antivenin (black widow spider): injection powder for solution.

Serious side effects

Along with its needed effects, antivenin (black widow spider) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor or nurse immediately if any of the following side effects occur while taking antivenin (black widow spider):

Incidence not known

  • cough
  • difficulty with swallowing
  • dizziness
  • fast heartbeat
  • feeling of discomfort
  • fever
  • hives
  • inflammation of the joints
  • itching
  • muscle aches or cramps
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • reddening of the skin, especially around the ears
  • shortness of breath
  • skin rash
  • swelling of the eyes, face, or inside of the nose
  • swollen lymph glands
  • tightness in the chest
  • unusual tiredness or weakness (sudden and severe)

For healthcare professionals

Applies to antivenin (black widow spider): injectable powder for injection.

Hypersensitivity adverse events

Musculoskeletal

References

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

More about Antivenin (Latrodectus Mactans) (antivenin (black widow spider))

Professional resources

Related treatment guides

Further information

Antivenin (Latrodectus Mactans) side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.