SUMMARY
Desmodium canadense herb is cultivated in Ukraine, particularly Persei genus is grown in Poltava region. Since nowadays the prevalence of diseases caused by herpes virus is large enough, and the tendency of growth of the number of patients is observed, the search of prospective sources with a strong antiviral activity is relevant.It is known that Desmodium canadense has an antiviral activity. Therefore, the complex of polyphenol compounds from Persei genus of Desmodium canadense herb was obtained previously.