1 Examples are morphine and heroin. 2  Worldwide, an estimated 69 000 people die from opioid overdose each year.  There are an estimated 15 million people who suffer from opioid dependence (i.e. an addiction to opioids).
Berberine is a natural alkaloid found in a wide variety of traditional herbs including goldenseal, barberry and Oregon grape. Many herbalists credit this unique alkaloid for the benefits of ancient herbal tonics used by native populations throughout the world.
Berberine. 1  Berberine is a compound extracted from a variety of herbs. It is supplemented for its anti-diabetic effects, which rival the potency of some pharmaceuticals. 2  This page features 311 unique references to scientific papers.