Evidence supporting the use of: Forsythia
For the health condition: Colds (decongestant)

Links: Go back one page, Tool main page, Ingredients list, Health conditions list, Body systems list

Synopsis

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

Forsythia (Forsythia suspensa) has a long history of use in traditional Chinese medicine (TCM), particularly as part of herbal formulas designed to treat colds, fever, and upper respiratory tract infections. In TCM, Forsythia is often paired with honeysuckle (Lonicera japonica) in the well-known formula "Yin Qiao San" (Yin Chiao), which is used at the onset of cold and flu symptoms to "clear heat" and "detoxify" the body. Historical records and TCM texts describe forsythia as having anti-inflammatory, antipyretic, and purportedly antimicrobial properties, which is why it has been included as an herbal remedy for colds and related congestion.

While there is some in vitro and animal research suggesting that Forsythia extracts may have antimicrobial and anti-inflammatory effects, robust clinical evidence in humans is lacking. Some modern studies of the Yin Qiao San formula suggest possible benefits in reducing the duration or severity of cold symptoms, but these studies often have methodological limitations and do not isolate Forsythia as the active component. As such, the primary justification for using Forsythia as a decongestant or cold remedy remains rooted in tradition rather than strong scientific validation. The evidence rating is moderate for tradition (2), but low for scientific proof.

More about forsythia
More about Colds (decongestant)