Peucedanum (a genus of plants in the Apiaceae family) has been traditionally used in some systems of herbal medicine, particularly in East Asian practices like Traditional Chinese Medicine (TCM). In TCM, certain species such as Peucedanum praeruptorum (Qianhu) are employed to "dispel wind" and clear phlegm, which are sometimes linked to symptoms like dizziness or vertigo. The use of Peucedanum for dizziness is therefore primarily rooted in traditional concepts rather than modern scientific understanding.

However, there is very limited scientific evidence supporting its efficacy for treating dizziness. Some in vitro and animal studies have investigated Peucedanum species for anti-inflammatory, antitussive, and vasodilatory effects, but these do not directly translate to clinical benefits for dizziness in humans. No robust clinical trials or systematic reviews have validated its use for this specific condition. Thus, while the herb has a historical basis for use in treating dizziness within traditional frameworks, modern medical literature does not confirm its effectiveness for this purpose.

In summary, Peucedanum’s role in treating dizziness is supported by tradition rather than scientific evidence, and the overall quality of evidence is low.