First Central Moscow Hospital: pain in the heart and behind the breastbone disappeared, decreased blood pressure normalized, heart circulation improved and blood serum cholesterol decreased in the majority of patients administered Rhododendron Caucasicum No change in the placebo control group.

Georgian institute for Medicinal Sciences: Researchers gave 30 mgs. of Rhododendron Caucasicum per day for thirty days to 120 patients suffering from heart pumping insufficiency. Results: The general physical states of all 120 patients significantly improved. The overall average pulse rate lowered from 90 to 70 beats per minute. The overall average systolic blood pressure was lowered from 177 to 160. No change in the placebo control group.