Gammaplex is given by a doctor or nurse and billed by the clinic, not a pharmacy. Your care team and your insurance decide which product you get, so ask them what you’d pay.

How do you pay?

How to pay the least

Given by your care team

Billed by the clinic

Gammaplex is given by a doctor or nurse, not picked up at a pharmacy.

  1. Ask your care team or your plan what you’d pay before your visit.

Compare every option

Question
Brand nameGammaplex
Authorized generichuman immunoglobulin G
Regular generichuman immunoglobulin G
What you’d pay
Cash priceAsk the pharmacy
Not soldThere isn’t one
Not soldAsk the pharmacy
Same as Gammaplex?
The original
–
–

Brand nameThe maker’s card

GAMMAPLEX Copay Assistance Program

Savings card from Kedrion Biopharma

Gammaplex’s maker has a savings program. Check its page for today’s terms.

Sign up on gammaplex.medmonk.com 

Or call 1-888-262-8040.

From the maker’s site, checked October 26, 2026. Co-pay cards can’t be used with Medicare (including Medicare Advantage), Medicaid, TRICARE or VA.

Authorized genericNot sold

There isn’t one. An authorized generic is Gammaplex itself, from the same company, sold without the brand name, and usually for less. For now Gammaplex is the only choice; ask the pharmacy for its cash price, or your plan what it charges.

See the brand name →

Regular genericNot sold

Gammaplex 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, ask the pharmacy for Gammaplex’s cash price, or your plan what it charges.

See the brand name →

What it’s used for

What the FDA label says

GAMMAPLEX 10% is an Immune Globulin Intravenous (Human) 10% Liquid indicated for the treatment of:

  • primary humoral immunodeficiency (PI) in adults and pediatric patients 2 years of age and older
  • chronic immune thrombocytopenic purpura (ITP) in adults

Source: the FDA label for Gammaplex (Bio Products Laboratory Ltd), October 23, 2025. Full label on DailyMed 

Good to know