antitoxin

noun

1. (countable, uncountable)A medicine able to neutralize a toxin.

   “Through the needle-hole thus stained with dye it was possible to "superinject" antitoxin, using a slightly wider needle avoid back leak along the old needle track, and thus to ensure a distribution of both toxin and antitoxin solutions from the same point the skin.”

2. (countable, uncountable)An antibody capable of neutralizing specific toxins.

   “These albuminous substances, whether found as normal products or created artificially in the blood, are distinguished as antitoxins, protective proteïds, vaccines, or alexines; physiologically they have been divided into sozines, those found in animals naturally immune, and phylaxines, those found in animals which by subcutaneous injections have artificially been made immune.”