Shelf-life evaluation of Ka?saharītakī avaleha and its granules: A preliminary study.

Background: Savīryatā-avadhi (shelf life) of different Ayurvedic dosage forms is described in Śār?gadharasa?hitā. Though the concepts have a strong background, we seek to re-evaluate the age old concepts by following current norms. An attempt has been made in the present study to evaluate shelf-life of Ka?saharītakī avaleha and its granules. Materials and Methods: Raw materials were procured from Pharmacy, Gujarat Ayurved University, Jamnagar and utilized after proper authentication in pharmacognosy lab. The avaleha and its granules were prepared in the departmental laboratory following classical guidelines and subjected to accelerated stability studies. Results: Both the products were found to be free from microbial contamination. Heavy metals were within the prescribed limit. Changes in physico-chemical profiles at different intervals are insignificant. On extrapolation of the observations, the shelf life of avaleha was found to be18 months and 27 months to the granules. Conclusion: Stability of granules was found to be comparatively higher than the avaleha. This observation may be exclusive to Ka?saharītakī avaleha. Studies on other avalehas and their granules need to be carried out to confirm this preliminary observation. [ABSTRACT FROM AUTHOR]