[Pharmacology of the plant polyphenol epigalokhin].

Polymer proanthocyanidin from Rhodiola semenovii named epihalochin was found to exhibit a pronounced antihypoxic effect in different models of hypoxia (hypoxic, cytotoxic and hemic), to relieve the hypoxic isolated heart contracture. Therapeutic doses of epihalochin produced a transient lowering of arterial pressure, decreased to a certain degree heart rate and lengthened the phases of cardiac contractions.