| A toxin that has been treated to destroy its toxic property, but retains its capability to stimulate the production of antitoxin antibodies. |
| Both cases, the saturation of toxin with antitoxin and ammonia with boric acid are equilibrium phenomena. |
| If the toxin is a venom, the antitoxin formed, or the antiserum containing it, is called an antivenin. |
| Administration of antitoxin prior to withdrawal of blood will result in a negative assay. |
| Treatment relies mainly on the administration of diphtheria antitoxin by the intramuscular or intravenous route. |
| Serum antitoxin levels of at least 0.01 antitoxin units per mL are generally regarded as protective. |
