EXPLORING THE PATH OF NIRYASA (EXUDATES): AN OVERVIEWAbstract
Ayurveda (Indian system of medicine) chikitsapaddhati treats the patient with herbal, animal, and mineral drugs. Among the three, plant-based products acquire prime importance because of their wide utility and negligible side effects. Various parts of the plant are used solely or in different formulations. Niryasaor exudate broadly includes all types of secretory products like gum, resins and sometimes latex. From immemorial period niryasais being used in numerous disease conditions in Ayurveda but it is left unexplored so far. Hence, an effort is made to enlighten the path towards niryasa. Source, type of exudate, Rasa, Guna, Veerya, Vipaka and karma of several niryasa like Hingu, Dikamali, Srivesthaka, Dhava, Kankusttha, Vamshalochana, Garjanataila, Bola, Laksha, Bhimseni Kapoor, Aloe, Kunduru, Rala, Palasha, Khadira, Guggulu, Shigru, Rumimastagi, Sarja, Karpura, Gond kateera, Nimbaniryasa, Babbula, Arimeda, Mocharasa, Beejakaniryasa, Shilarasa, Tailaparni, Lobana, Charasand Raktaniryasaare tabulated as per available description in classics. Botanical identity along with illustration regarding exudate collection of above plants is catalogued based on published data from authorized journals. Apart from medicinal significance theyare also used in adhesives, printing and finishing textiles, sizing for paper, in paints and candy industries. Exudates are more effective because it contains a high number of secondary metabolites compared to other parts of the plant; hence the dose will be minimum. This article will help physicians to incorporate various niryasa in the routine practice as till now only few niryasa were in use like Hingu, Guggulu, and Shallakiniryasa.
Daneshwari S. Kanashetti, Lalit Nagar * and Kamal Nayan Dwivedi
Department of Dravyaguna, I. M. S, B. H. U, Varanasi, Uttar Pradesh, India.
27 June 2020
27 January 2021
23 May 2021
01 September 2021