The Materia Medica of the Hindus, compiled from Sanskrit Medical Works c4.s7.2

c4.s7.2

In these later works white arsenic is called by several names, such as शङ्खविष Sankha visha, साम्बलक्षार Sámbala kshára, फेनाश्मभस्म Phenásma bhasma, and दारुमुच Dárumuch. None of these terms, however, is to be found in standard lexicons, such as Wilson's Sanskrit-English Dictionary, or Sir Rájá Rádhákanta Deva's Sabdakalpadruma. Phenásma bhasma is mentioned by Susruta in his chapter on poisons, where he says, it and haritála (orpiment) are the two mineral poisons,* but it is very doubtful if Susruta meant any native white arsenic by it. The derivation of the term implies that it was obtained by roasting some sort of stone or ore. White arsenic was obtained artificially in ancient days by roasting orpiment (see orpiment), and probably this preparation was called Phenásma bhasma. At a later period imported white arsenic had been used in medicine under the designations of sambalakshára, dárumuch, and sankha visha.