Intravenous Immunoglobulin (IVIG) from Takeda.
Gammagard Liquid is the standard 10% IVIG product manufactured by Takeda for primary humoral immunodeficiency. Gammagard S/D is a related lyophilized formulation that is reconstituted prior to administration; it is sometimes selected for patients with very low IgA where ultra-low-IgA preparations are clinically appropriate. Selection between formulations is individualized.
Gammagard Liquid / Gammagard S/D is FDA-approved for the following indications:
Gammagard is administered intravenously, typically every three to four weeks. Infusion is done at home, in our co-located infusion suite at Horizon Infusions, or at a partner ambulatory infusion center based on patient preference and insurance coverage. Initial infusions are performed under closer monitoring; once tolerance is established, ongoing infusions are routine.
The manufacturer offers a patient support program — Takeda Patient Support / OnePath — that can help with insurance navigation, copay assistance for eligible patients, nursing support, and ongoing education. More information is available at https://www.takedapatientsupport.com.
Treatment with Gammagard Liquid / Gammagard S/D is initiated and monitored by Dr. McNeil. Prior authorizations are handled in-house — patients are not asked to navigate insurance approvals on their own. Infusion logistics are coordinated through trusted partner infusion providers — including Horizon Infusions, where the practice is co-located — or arranged for home infusion when appropriate. The team handles scheduling, nursing coordination, and prior-authorization renewals.
Important safety note: This page is not a substitute for the FDA prescribing information. Risks, contraindications, drug interactions, and required monitoring vary by patient. The official manufacturer website (https://www.gammagardliquid.com) provides the most current full prescribing and safety information. Treatment decisions and monitoring are individualized — please discuss with Dr. McNeil whether Gammagard Liquid / Gammagard S/D is appropriate for your situation.
Donald L. McNeil, MD · Board Certified in Allergy & Immunology and Internal Medicine
This page is provided for educational purposes only and is not medical advice. If you have an emergency, call 911.