With IVIG, a patient receives high dose immune
globulin intravenously. Immune globulin is a human blood product pooled
from multiple donors who are carefully screened. By providing the body
with normal antibodies from donated blood, IVIG treatments appear to
temporarily modify the immune system. For most individuals, MG weakness
typically improves within a week of treatment and lasts for several
weeks or months. IVIG treatments are very expensive and offer short-term
relief from MG symptoms.
Side effects—for instance, headache or allergic symptoms--are usually related to how fast the drug is administered.
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