Hymns of the Atharva Veda, by Ralph T.H. Griffith, [1895], at sacred-texts.com

HYMN LXXXVIII

A charm to cure a snake-bite

1Depart! thou art a foe, a foe. Poison with poison hast thou
   mixt, yea, verily poison hast thou mixt.
  Go to the serpent: strike him dead.