Gammagard S/D

Generic name: immune globulin intravenous (human)

Used for: Primary immunodeficiency (a weak immune system) · Preventing infections in chronic lymphocytic leukemia (CLL) · Low platelets (ITP) · Preventing heart artery aneurysms in Kawasaki syndrome · 3 more

How do you pay?

How to pay the least

Ask for the cash price

Gammagard S/D

Gammagard S/D is a biologic. Biologics don’t have generics, but some have biosimilars or an unbranded version from the same maker. Ask your pharmacist or prescriber whether one is sold.

  1. Ask your pharmacy for Gammagard S/D’s cash price, and one or two other pharmacies too.
  2. Gammagard S/D’s savings card works only with insurance from a job or one you bought.

Compare every option

Question
Brand nameGammagard S/D
Authorized genericimmune globulin intravenous (human)
Regular genericimmune globulin intravenous (human)
What you’d pay
Cash priceAsk the pharmacy
Not soldThere isn’t one
Not soldAsk the pharmacy
Same as Gammagard S/D?
The original
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Brand nameThe maker’s card

Takeda Patient Support Co-Pay Assistance Program

Savings card from Takeda

No insuranceNeeds insuranceNo cash price listed.
Insurance · up to $20,000 off a year

The card takes up to $20,000 a year off your co-pay.

Sign up on takedapatientsupport.com 

In the maker’s words

“The maximum co-pay assistance available annually is $20,000…”

From the maker’s offer on takedapatientsupport.com, checked November 2, 2026. Co-pay cards can’t be used with Medicare (including Medicare Advantage), Medicaid, TRICARE or VA.

Maker’s card or discount card?

A discount card like GoodRx lowers the pharmacy’s cash price, but for a brand-name drug that price often stays high. Compare it with the maker’s card above. You can usually use one or the other on a fill, not both.

Authorized genericNot sold

There isn’t one. An authorized generic is Gammagard S/D itself, from the same company, sold without the brand name, and usually for less. For now Gammagard S/D is the only choice; its maker’s savings card can lower what you pay.

See the brand name →

Regular genericNot sold

Gammagard S/D is a biologic. Biologics don’t have generics, but some have biosimilars or an unbranded version from the same maker. Ask your pharmacist or prescriber whether one is sold. Generics usually come once the brand’s patents and exclusivity end. Until then, the maker’s savings card is the way to pay less.

See the brand name →

What it’s used for

What the FDA label says

GAMMAGARD S/D is an Immune Globulin Intravenous (Human) indicated for:

  • Treatment of primary immunodeficiency (PI) in adults and pediatric patients two years of age or older.
  • Prevention of bacterial infections in hypogammaglobulinemia and/or recurrent bacterial infections associated with B-cell chronic lymphocytic leukemia (CLL).
  • Prevention and/or control of bleeding in adult chronic idiopathic thrombocytopenic purpura (ITP) patients.
  • Prevention of coronary artery aneurysms associated with Kawasaki syndrome in pediatric patients.

Source: the FDA label for Gammagard S/D (Takeda Pharmaceuticals America, Inc.), November 25, 2025. Full label on DailyMed 

Good to know

Prices checked November 2, 2026. Prices change: confirm with the pharmacy before you fill. drugalt.com/drug/gammagard-s-d/