Although kudzu is used in traditional medicine, the evidence on whether it has benefit for any condition is unclear. 
Kudzu is an herb used in Chinese medicine to treat alcoholism, heart disease, menopausal symptoms, diabetes, fever, the common cold, and neck or eye pain. It is sometimes used in combination with other herbs. Lab studies suggest that kudzu has anti-inflammatory and neuroprotective properties. Compounds called isoflavones are thought to be responsible for its potential effects.
Studies of kudzu in humans are limited and have mostly focused on whether it can reduce alcohol intake or menopausal symptoms. However, all of these studies enrolled small numbers of patients, and systematic reviews have determined that the evidence of benefit for any condition is unclear.
Because animal and human studies suggest some estrogenic effects, individuals with hormone-sensitive cancers and those taking tamoxifen should avoid kudzu.