The herb kratom is increasingly being used to manage pain and treat opioid addiction, but it's not safe to use as an herbal supplement, according to new research led by faculty at Binghamton University, State University of New York.
source https://www.lifetechnology.com/blogs/life-technology-news-blog/kratom-herbal-supplement-used-to-treat-addiction-and-pain-found-unsafe-by-researchers