Investigation of iridoid substances in Arctostaphylos uva-ursi.

: Active principles of bearberry have been studied for several decades. The drug Folium uvae-ursi is useful to the pharmaceutical industry (in production of medicinal teas) for its disinfective effect on the urinary tract which is derived from the content of phenolic glucosides. This work is a part of the total evaluation of the drug from the point of view of contents of active principles, biogenesis, isolation, qualitative and quantitative differences during the vegetative period, and the changes during technological treatment and pharmacological activity of its active principles.