Atharva Veda 7.56

From the cross-lined [snake], from the black snake, from the adder (pṛ́dāku) [what is] gathered—that poison of the heron-jointed (?) one hath this plant made to disappear.

This plant [is] sweet-(mádhu-)born, sweet-dripping, sweetish, sweet; it is the remedy of what is dissevered (vi-hru), also grinder-up of stinging insects.

Whence bitten, whence sucked—thence do we call [it] out for thee; of the petty, hastily-biting (?) stinging insect the poison [is] sapless.

Thou who here, crooked, jointless, limbless, makest crooked twisted (vṛjiná) faces—those [faces] mayest thou, O Brahmaṇaspati, bend together like a reed.

Of the sapless çarkóṭa, crawling on, on the ground (nīcī́na)—its poison, verily, I have taken away, likewise I have ground it up.

Not in thy (two) arms is there strength, not in thy head, nor in thy middle; then what petty thing bearest thou in that evil way in thy tail?

Ants eat thee; pea-hens pick thee to pieces; verily may ye all say "the poison of the çarkóṭa is sapless."

Thou that strikest (pra-hṛ) with both, with both tail and mouth—in thy mouth is no poison; how then may there be in thy tail-receptacle?