Ginkgo biloba’s epilepsy seizures warning- bbcnewa. Jan 29, 2010. People with epilepsy should be warned that using a popular herbal remedy may increase the risk of seizures, researchers say. German scientists, writing in the Journal of Natural Products, said they had found 10 written reports of seizures linked to ginkgo biloba. They said they were convinced the herb could have a "detrimental effect". A leading UK epilepsy charity said the evidence was not yet compelling, although it said care was needed. [ See ]. See also previous related articles: A new paper in JAMA about Gingko and A new paper in JAMA about Gingko II