0 an antiserum (= a substance made from blood) that contains antibodies (= proteins produced to fight disease) against a particular poison, especially one found in the bite of a snake, spider, or other animal:
She was bitten twice by a rattlesnakes. Neither bite required antivenin, though both times her arm swelled and turned black and blue.
Made from sheep serum, the new antivenom is highly purified and is expected to reduce adverse reactions.
Without the antivenin - drugs that neutralize toxins from venomous snakebites - patients will suffer more pain and illness, require a longer hospital stay and possibly need blood transfusions.
Their inventory includes 43 antivenins for an array of reptile, insect and spider bites.
