From Big Medical Encyclopedia

BIOLOGICALLY ACTIVE AGENTS — the organic compounds which are carrying out catalytic, biotic, abiotic and other functions in an organism and having high activity and specificity.

Group B. and. make as complex high-molecular compounds century (e.g., the proteins having enzymatic properties), and rather simple organic matters (biogenic amines, etc.). To B. and. belong century enzymes (see), hormones (see), vitamins (see), antibiotics (see), activators of growth (see), herbicides (see), insecticides, biogenic stimulators (see), etc. Many B. and. have antitubercular, antineoplastic, spasmolytic activity century. B. and. century widely apply in therapy of various diseases, and also at the researches which are carried out by methods molecular biology (see).

I. G. Balangding.