Intravenous Immunoglobulin Administration

Premedication and Infusion Protocol

The American College of Physicians recommends premedication with acetaminophen (650-1000 mg orally) and diphenhydramine (25-50 mg orally) 30-60 minutes before IVIG infusion to reduce the risk of infusion reactions, with a strength of evidence based on clinical trials 1, 2
Patients with risk factors such as history of previous IVIG reactions, multiple drug allergies, IgA deficiency, or asthma may benefit from additional premedication, including H2-antihistamines (e.g., ranitidine 150 mg or famotidine 20 mg) and hydration with normal saline before infusion, as suggested by the Mayo Clinic Proceedings 3, 4

Vital signs should be monitored every 30 minutes during infusion and hourly for 4 hours after infusion, with observation for signs of infusion reactions such as headache, flushing, chills, fever, nausea, back pain, and chest tightness, as recommended by the medical community 1, 2
In case of an infusion reaction, the infusion should be stopped immediately, and symptom-specific treatment should be provided, including 5-HT3 antagonists (e.g., ondansetron) for nausea, second-generation antihistamines for urticaria, and IV hydration with normal saline for mild hypotension, with a strength of evidence based on clinical experience 1, 4
First-generation antihistamines like diphenhydramine should be avoided during reactions as they can potentially convert minor infusion reactions into hemodynamically significant events 4
Epinephrine should be administered for anaphylaxis, and IV corticosteroids and H2 antagonist should be considered 4
If a patient experiences a mild to moderate reaction that resolves completely, consider restarting the infusion at 50% of the initial rate after 15 minutes, with gradual increase if tolerated 4

In patients with renal impairment, non-sucrose containing IVIG products should be used, with adequate hydration and a slower infusion rate, as recommended by the medical community 3
In patients with cardiovascular risk factors, a slower infusion rate is recommended, especially in elderly patients or those with hypertension, diabetes, or previous thromboembolic disease, with a strength of evidence based on clinical trials 3
In patients with IgA deficiency, IgA levels should be checked before the first infusion, and IVIG preparations with reduced IgA content should be used, as suggested by the Mayo Clinic Proceedings 3
Patients with multiple drug allergies, prior reactions to IVIG, or asthma may be at higher risk for infusion reactions and may benefit from more aggressive premedication 4

The following medications and equipment should be available in case of an emergency: acetaminophen, NSAIDs (e.g., indomethacin), H1 and H2 antihistamines, analgesics, epinephrine (for anaphylaxis), oxygen, and suction equipment, as recommended by the American College of Physicians 1, 2
Medications such as continued acetaminophen, indomethacin or equivalent NSAID, H2 antagonists, and analgesics should be readily available at the bedside during IVIG administration 2
Systemic corticosteroids are generally avoided as premedication for standard IVIG infusions unless specifically indicated for certain conditions 2