antivenin (Crotalidae) polyvalent (generic name)

CroFab (brand name)

It is used to treat patients who have been bitten by certain poisonous snakes, like rattlesnakes and water moccasins
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What is this medicine?

CROTALIDAE POLYVALALENT IMMUNE FAB is an anti-venom. It is used to treat patients who have been bitten by certain poisonous snakes, like rattlesnakes and water moccasins.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • bleeding disorders or blood disease
  • an unusual or allergic reaction to crotalidae polyvalent immune fab, papaya, papain, latex, dust mites, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

This medicine is for infusion into a vein. It is given by a health care professional in a hospital or clinic setting.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

This does not apply.

What may interact with this medicine?

Interactions are not expected.

What should I watch for while using this medicine?

Your condition will be monitored carefully while you are receiving this medicine.

After you receive this medicine watch for any symptoms of bruising or bleeding. Call your doctor right away if you have nosebleeds, excessive bleeding after brushing teeth, blood in the stools or urine, excessive menstrual bleeding, excessive bruising, or persistent oozing from wounds. You may need more medicine.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
  • breathing problems
  • dark urine
  • dark, tarry stools
  • fever
  • low blood pressure
  • unusual bleeding or bruising

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • aches and pains
  • cough
  • loss of appetite
  • nervousness
  • tingling pain

Where should I keep my medicine?

This drug is given in a hospital or clinic and will not be stored at home.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Last Updated: March 24, 2009
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