Evidence supporting the use of: Slippery elm bark
For the health condition: Emphysema

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Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Slippery elm bark (Ulmus rubra) has a long history of use in traditional herbal medicine, particularly among Native American communities and early American settlers. Its inner bark is known for its mucilaginous (gel-like) texture when mixed with water, which is soothing to mucous membranes. Traditionally, it has been used to relieve coughs, sore throats, and irritation of the respiratory tract—symptoms that can be present in various respiratory conditions, including emphysema. The rationale behind its use in emphysema is that its demulcent properties might soothe the irritated lining of the throat and airways, potentially reducing discomfort from chronic coughing.

However, there is little to no scientific evidence specifically validating the efficacy of slippery elm bark for the treatment or management of emphysema, a chronic obstructive pulmonary disease primarily characterized by damage to the alveoli in the lungs. No clinical trials or robust studies have demonstrated that slippery elm bark can influence the course of emphysema, improve lung function, or provide more than symptomatic relief for throat irritation. Its use is therefore based more on historical tradition and anecdotal reports rather than scientific validation. Consequently, slippery elm bark may be used as an adjunct for comfort, but it should not be considered a substitute for evidence-based medical management of emphysema.

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