Cat's Claw

How does Cat's Claw work?

Cat's claw contains chemicals that might stimulate the immune system, kill cancer cells, and fight viruses.

Are there safety concerns?

Cat's claw seems safe for most people, when taken short-term. Cat's claw can cause headache, dizziness, and vomiting in some people.

Do not take cat's claw if:
  • You are pregnant or breast-feeding.
  • You have low blood pressure.
  • You have leukemia. Cat's claw might worsen this condition.
  • You have an immune system disease such as multiple sclerosis, lupus erythematosus, or other auto-immune diseases.
  • You are scheduled for surgery in the next two weeks.

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Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.