ACE and hypertensive disorder: Besides regular medicines, angiotensin-converting enzyme inhibitors (ACEI), Ang II receptor blockers (ARB), calcium blockers, diuretics, and so on (Chockalingam, 2008), many traditional Chinese herbs have been used to clinically treat hypertension, especially Aconitum carmichaelii, which is officially recorded in Chinese pharmacopoeia and has been used to treat cardiovascular disease for many years.