Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Lobelia (Lobelia inflata), also known as Indian tobacco, has a long history of use in traditional herbal medicine for supporting the respiratory, or bronchial, system. Native American tribes historically used lobelia for asthma, bronchitis, pneumonia, and coughs, often in the form of teas or tinctures. In the 19th century, lobelia was adopted by Eclectic physicians in the United States, who used it as an expectorant and respiratory stimulant.

Despite its traditional use, modern scientific evidence supporting lobelia’s efficacy for bronchial or respiratory support is limited. Lobeline, the main alkaloid in lobelia, has been shown in some laboratory and animal studies to possess bronchodilatory effects and may stimulate breathing. However, clinical trials in humans are lacking, and the evidence from existing studies is generally weak or inconclusive. Lobelia is not widely recommended in conventional medicine today, partly due to concerns about potential toxicity at higher doses (nausea, vomiting, and more severe adverse effects).

In summary, lobelia’s use for supporting the bronchial system is primarily justified by traditional and historical practices, with only modest scientific backing and notable safety concerns. As such, while it has a long record of use, the strength of evidence for its effectiveness remains low.

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