Used as Natural Remedies for Atrial Fibrillation to get rid of anxiety and help maintain proper blood flow. Olive leaf is rich in elements such as flavonoids, sterols, secoiridoids, and triterpenoids. Extracts from the roots of Chinese angelica Buy Herbal Product for Atrial Fibrillation. Sugar Angelica extracts to nourish and cleanse the blood to achieve better movement and maintain blood pressure.