What Is IVIG?
Understanding the therapy and why patients need it
Key Takeaways
What Is IVIG?
IVIG stands for Intravenous Immunoglobulin. It is a medicine made from the donated plasma of thousands of healthy people. That plasma contains antibodies — the proteins our immune systems make to fight infections and disease.
Made from Human Plasma
Plasma is collected from thousands of donors, then processed to concentrate the IgG antibodies. The final product is a sterile solution ready for infusion.
Replaces or Modulates Immunity
For patients who cannot make enough antibodies (like PI patients), IVIG replaces what is missing. For autoimmune patients, it helps calm an overactive immune response.
A Life-Changing Therapy
For many patients, IVIG is the difference between frequent hospitalizations and a normal life. These are chronic patients who often need therapy for years or life.
The Simple Explanation — For Any Conversation
"IVIG is a medicine made from donated blood plasma. It contains antibodies — the same proteins your immune system makes to fight infections. Patients who either can't make enough antibodies on their own, or whose immune system is attacking their own body, receive IVIG to help restore balance. It's given through an IV or injected under the skin, and many patients receive it for life."
Use this explanation when talking to a new provider, office manager, or patient family member.
Why Does This Matter for Sales?
Chronic, Recurring Revenue
Most IVIG patients are on therapy for years — some for life. A single patient represents significant long-term value.
High Clinical Complexity
Providers need a knowledgeable partner. Understanding the therapy builds trust and opens doors.
Growing Market
IVIG use is expanding as new indications are approved and more patients are diagnosed earlier.
Home Infusion Shift
Payers and patients are increasingly moving to home infusion — creating a clear opportunity for our business.