Vasaka is a common shrub distributed throughout India. In Ayurveda, the ancient system of Indian medicine, it is commonly known as vasa. It commonly grows in waste places. The medicinal value of the medicinal herb has been mentioned in old texts. It is household remedy for various disorders. Charaka Samhita has classified the drug under mucolytic and expectorant drugs.
Singh, Amrit Pal
"Adhatoda vasica: Therapeutic Monograph,"
1, Article 31.
Available at: http://opensiuc.lib.siu.edu/ebl/vol2005/iss1/31