Process for the preparation of water extract of Ashwagandha leaves anticancer activity is enhanced through the use of cyclodextrin and pharmaceutical compositions containing Ashwagandha leaves

And to provide a process for the preparation of water extract of Ashwagandha leaves to increase the content of Wizanon and Wizaferin A of the active ingredient of water extracts of Ashwagandha leaves. The present invention also aims to provide a pharmaceutical composition comprising an Ashwagandha leaf more economically and conveniently. The present invention is directed to a process of preparing a water extract of Ashwagandha leaves and extracting the Ashwagandha leaves in the presence of cyclodextrin, and a method of enhancing anticancer activity of water extracts of Ashwagandha leaves. The present invention also relates to cancer pharmaceutical composition for treating or preventing comprising water extracts of Ashwagandha leaves. The present invention also relates to a pharmaceutical composition comprising a dry powder and cyclodextrin Ashwagandha leaves.