Immunoglobulin therapy involves the use of pooled immunoglobulin G (IgG) antibodies, derived from the plasma of thousands of donors. These antibodies are administered intravenously to patients to treat a variety of immune-related conditions. In the realm of toxicology, IVIG can be used to neutralize toxins and modulate immune responses, providing a supportive treatment in cases where patients have been exposed to toxic substances or have undergone immune modulation due to toxic exposure.