indeed it is a matter of consern regarding the way the western people worrrying regarding the toxic effects of the rasaushadhis. but the medicines are classically produced when administered at relevent dosage forms will not have any of such adverse effects. arsenic,lead and mercury containing medicines are being used since old age. the classical documents have even explained the qualities of the same. the need of the hour is the proper assessment of the processes that are used to purify and the method of preparation of bhasmas.