Oak Bark

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How does Oak Bark work?

Oak bark contains tannins which might help treat diarrhea and inflammation.

Are there safety concerns?

Oak bark might be safe for most people when taken for up to 3-4 days for diarrhea. Oak bark can cause serious side effects such as stomach and intestinal problems, and kidney and liver damage.

Oak bark might be safe for most people when applied directly to the skin for up to 2-3 weeks. When applied to damaged skin or when taken for longer than 2-3 weeks, oak bark is unsafe.

Do not take oak bark if:
  • You are pregnant or breast-feeding.
  • You have liver problems.
  • You have kidney problems.
  • You have a skin condition called eczema or large areas of skin damage.
  • You have a heart condition.
  • You have an infection or a disease with a fever.

Dosing considerations for Oak Bark.

The appropriate dose of oak bark depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for oak bark. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.


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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.


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