Quantification of six volatile oil constituents of Oleum Cinnamomi in rat plasma and multiple tissues using GC-MS and its application to pharmacokinetic and tissue distribution studies.

Oleum Cinnamomi is the essential oil obtained from the herb Fructus Cinnamomi which is used by the Hmong people in traditional medicine for the treatment of various diseases. At present, there are a variety of marketed preparations with it as the main medicine on the market. Information regarding the in vivo process of it is lacking, which has become a bottleneck restricting its development and utilization.