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Slippery Elm Powder Side Effects

Valued for its anti-inflammatory and antioxidant properties, the medicinal herb slippery elm may help reduce symptoms associated with sore throat, the common cold, cough, chronic heartburn and irritable bowel diseases 4. Topical preparation of this herb may also alleviate swelling caused by burns or injury. More research is needed, however, to validate these proposed health benefits of slippery elm powder 34. Discuss the safety of this medicinal herb with your doctor before you begin taking slippery elm powder to treat your condition 4.

Overall Safety

Oral treatment with slippery elm powder is usually well-tolerated and doesn't cause side effects 4. Topical treatments that contain slippery elm powder may cause mild skin irritation or redness in certain people 4.


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The safety of slippery elm during pregnancy hasn't been fully evaluated 4. For this reason, pregnant and breast-feeding women should avoid using slippery elm powder without first consulting a doctor 4.

Interactions With Other Medications

Slippery elm powder may interfere with the way your body absorbs other medications you take orally, decreasing the effectiveness of your treatment 4. To prevent this interaction, take other medications at least one hour before you take slippery elm powder supplements 4.

Dosing Guidelines

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Adults can take 800 to 1,000 mg of slippery elm powder three to four times daily, according to the University of Michigan Health System 134. However, the amount of slippery elm powder you need daily may vary depending on your health, age and weight 34. For this reason, seek dosing guidance from a medical professional before beginning treatment with this herbal supplement.