The Materia Medica of the Hindus, compiled from Sanskrit Medical Works c4.s3.30

c4.s3.30

Castor oil and mustard oil are sometimes used in the preparation of medicated oils. The proportions of oil, medicinal substances and fluids are the same as with sesamum oil, but the preliminary preparation of these oils is different. Mustard oil is purified by being boiled with the following ingredients, namely, emblic myrobalan, turmeric, tubers of *Cyperus rotundus* (*mustaka*), root-bark of *Ægle Marmelos* (*vilva*), pomegranate bark, flowers of *Mesua ferrea* (*nágakesara*), Nigella seeds, root of *Pavonia odorata* (*bálá*), the bark called *naliká*, and belleric myrobalan, two tolás each, and madder sixteen tolás, for four seers of oil. These should be boiled together with sixteen seers of water, till the latter is all evaporated, and the oil should then be strained. It is now fit for being boiled with medicinal substances, the process for which is the same as for sesamum oil above described.