Polyherbal formulations as mentioned in classical texts of Ayurveda, are used by number of pharmaceutical companies. It is very difficult to understand the theme of polyherbal preparations as a number of ingredients may vary from two to 25 or more. It is very difficult to set the standards of these types of formulations. The situation is further worsened by the multiple use of these formulations as mentioned in Ayurveda. Keeping in view the growing popularity of herbals, it is the need of hour to have analytical data, bio-equivalence, pharmacological, toxicological studies with particular reference to herbal-synthetic drug interactions. This is possible only if standardised extracts concentrated to known therapeutic constituents are used.
The concept of standardization is finally catching up with Ayurvedic herbs and some of them have been standardized. The standardized Ayurvedic herbs are
1. Adhatoda vasica (0.5% Vasicine )
2. Andrographis Paniculata (10% Andrographolide)
3. Azadirachita Indica 2% (Azadiractin)
4. Bacopa Monneri 20% (Bacoside)
5. Boswellia Seratta (40% and 70% Boswellic Acid).
6. Centella Asiatica (3% Asiaticoside)
7. Commiphora Mukul (5% Guggulsterones)
8. Curcuma longa(95% Curcumin)
9. Embelia Ribes (8% Embellin)
10. Glycyrrihiza Glabra (20% Glycyrrhizin)
11. Gymnema Sylvestre (25% Gymnemic Acid).
12. Momordica Charantia (3% bitters).
13. Phylanthus Niruri (2% bitters)
14. Picrorrhiza Kurroa (10% bitters )
15. Shilajit (5% Fulvic Acid)
16. Tribulus Terrestris (20% and 40% Saponin)
17. Trigonella Foenum Graceum (10% Saponin)
18. Withania Somnifera (1.5% withanolides / 1% Alkaloid).
19. Zingiber Officinale (5% Gingerols).
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