anticytotoxin

an·ti·cy·to·tox·in

(an'tē-sī-tō-tok'sin),
A specific antibody that inhibits or halts the activity of a cytotoxin.

anticytotoxin

(ant″i-sīt″ŏ-tok′sĭn) [ anti- + cytotoxin]
An agent that opposes the action of a cytotoxin.