Crataegus pinnatifida is used to promote the health of the circulatory system, treat angina, high blood pressure, congestive heart failure and cardiac arrhythmia and has been found to strengthen the heart. Hawthorn is widely regarded as a safe and effective treatment for the early stages of heart disease and has been used for a number of ailments including angina, myocarditis, arteriosclerosis, nervous conditions like insomnia, and diarrhea. It has also been indicated for strengthening blood vessels, vascular insufficiency and blood clots, restoring the heart muscle wall, lowering cholesterol and to aid digestion.