IV immunoglobulin (IVIG)
Also known as: IVIG · Intravenous immunoglobulin
IV immunoglobulin, or IVIG, is a specialist infusion made from purified antibodies. It is used in selected autoimmune conditions when other treatments are not enough or not suitable. I would like to help you understand it in plain language.
Calm, careful medication review by a consultant rheumatologist.
What this medicine is
IVIG is a treatment made from antibodies collected from thousands of donors. It is given as a drip into a vein, over several hours, and can help calm certain kinds of immune-driven inflammation.
Uses and context
In rheumatology, IVIG is used in specific situations such as some inflammatory myositis, some vasculitis flares, and selected autoimmune conditions when standard treatments are not enough. Selection is always specialist led.
How this relates to rheumatology care
I consider IVIG carefully, based on your diagnosis, your response to other treatments, your infection risk, and your general health. Infusions need proper venous access, monitoring and time. I plan them with the hospital day-care or infusion team.
What safety checks may matter
Diagnosis confirmed and other options considered first
Baseline blood tests including kidney function
Screen for hepatitis and other infections as advised
Assess vein access and infusion setting
Careful hydration before and during the infusion
Slow start rate with observation for reactions
Side effects and red flags
If you have emergency symptoms such as severe allergic reaction, breathing difficulty, chest pain, stroke-like symptoms, severe abdominal pain, vomiting blood, black stools, sudden vision loss, severe infection symptoms, or severe weakness or confusion, please seek urgent medical care first rather than waiting for a WhatsApp reply.
Fever, chills, rash or breathlessness during or after the infusion
Severe headache, neck stiffness, or vomiting after IVIG
Chest pain, calf swelling or sudden breathlessness (possible clot)
Very reduced urine output or new leg swelling
Signs of severe allergic reaction
Things worth knowing day to day
Plan a full day for each infusion; do not rush.
Stay well hydrated before treatment.
Tell your infusion nurse about any headache, chest tightness or rash immediately.
Not all pain relief and anti-inflammatories are safe alongside IVIG; check with me.
Questions patients often ask me about this medicine
Speak with me
If IVIG has been suggested for you, or if your rheumatology team is exploring it, please message my clinic. I would like to help you understand the plan clearly before you decide.
Other medications used in rheumatology care
This page is for general education only and does not replace medical advice. Please consult a qualified healthcare professional for diagnosis and treatment. Do not start, stop, or change any medicine without advice from your doctor.