Arthashastra
धाम अर्गव यातु धान मूलं भल्लातक पुष्प चूर्ण युक्तम् आर्धमासिकः ॥
The powder prepared from the roots of dhámárgava (lufta foetida) and yátudhána (?) mixed with the powder of the flower of bhallátaka (Semecarpus Anacardium) causes, when administered, death in the course of half a month.
english translation
dhAma argava yAtu dhAna mUlaM bhallAtaka puSpa cUrNa yuktam ArdhamAsikaH ॥
hk transliteration by Sanscript