Arka Kalpana, a distinctive Ayurvedic formulation, emerged during the latter Samhita period, characterized by precise preparation methods and therapeutic efficacy. Its palatability surpasses traditional dosage forms like Swarasa, Kalka, and Kwatha. As outlined in Arka Prakasha, the pioneering text on distillation procedures, Arka Kalpana boasts enhanced potency compared to other Kalpanas It is more palatable Ayurvedic dosage forms in comparison to decoction etc. Some of the ayurvedic formulations which are in the form of Arka Kalpana and widely used were not studied properly Different types of distillation and heating methods are given in Arka Prakasha by Ravana for preparing Arka. Arka Kalpana can be correlated with Distillation in modern pharmaceutical practices. Many local curative and preventive application has been mentioned in ayurvedic classics for the treatment of netraroga like seka aschoytana, pindi, vidalaka, anjana etc. According to acharya Vagbhata aschyotana is the first line of treatment in netra rogas. In netraroga chikitsa Thriphala ,lodra and Shigru pallava were widely used for various kriyakalpas due to its chakshushya property.. In this project, these 3 drugs (Thriphala, Lodra & Shigru pallava) was prepared in to arka formulation and was subjected to organoleptic evaluation and physicochemical tests
Prabhakar et al. (Fri,) studied this question.