The main problem of the use of medicinal plants, discussed by this text, is that citizens are being persuaded that herbal medicine is based on its low or even absent toxicity. A good efficacy is assumed as self-evident, and therapeutic benefit without risks is expected. Many users prefer natural medicine instead of synthetic remedies. However, the number of reports on unwanted side effects of phytomedicines has increased in the last few years. In some instances, a lack of pharmaceutical quality was found. The unqualified recommendation of herbal medicines may represent a considerable risk for...