Tobacco composition containing apocynum venetum or an extract thereof, and process to prepare it

摘要

The present invention relates to a tobacco composition comprising tobacco and bluish dogbane in the form of bluish dogbane leaves or bluish dogbane extract, a process for making the tobacco composition and a process for producing bluish dogbane extract. The tobacco composition of the present invention is useful to alleviate and cure chronic bronchitis caused by smoking.