The Materia Medica of the Hindus, compiled from Sanskrit Medical Works c4.s3.31

c4.s3.31

For purifying castor oil, the following ingredients are used, namely, madder, tubers of *Cyperus rotundus* (*mustaka*), coriander, the three myrobalans, leaves of *Sesbania aculeata* (*vaijayanti*), *Pavonia odorata* (*hrivera*), wild dates, tender red buds of *Ficus Bengalensis* (*vaṭasunga*), turmeric, wood of *Berberis Asiatica* (*dáruharidrá*), the bark called *naliká*, ginger and the shoots of *Pandanus odoratissimus* (*ketaki*), each half a tolá for four seers of oil. Castor oil should be boiled with equal parts of whey and *kánjika* (fermented paddy water) along with the above ingredients.∗