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Herbal medicine is the oldest form of healing and treating various diseases.1 Herbal medicines have been widely used due to its more cost effective with no side effects when compared to synthetic drugs. About 80% of the world population rely mainly on herbal medicine for their primary health care.2 The increasing demand in the use of herbal medicine gain an attention of the researchers interestingly to study the standardization and quality control of herbal drugs in order to avoid the erroneous medication and improve the quality of drugs. Standardization is a significant tool for ensuring the quality of herbal drugs. The drug identity, purity, content, chemical and other biological properties determine the quality of the drug.3

pharmacognosy journal

Comparative Study on Pharmacognostical, Phytochemical Investigations and Quantification of Vasicine Content in the Extracts of Adhatoda vasica Nees and Adhatoda beddomei CB Clarke