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What is Octagam?

Octagam is an IVIG product manufactured by Octapharma, available in both 10% and 5% formulations. It carries FDA approval for primary humoral immunodeficiency, chronic ITP, and dermatomyositis (10% formulation).

What it treats

Octagam is FDA-approved for the following indications:

  • Primary humoral immunodeficiency
  • Chronic ITP
  • Dermatomyositis (10% formulation)

How it is administered

Octagam is administered intravenously every three to four weeks. The 5% formulation may be preferred for patients who require slower infusion rates; the 10% allows shorter infusion times.

Patient assistance & support

The manufacturer offers a patient support program — Octapharma Patient Resources — that can help with insurance navigation, copay assistance for eligible patients, nursing support, and ongoing education. More information is available at https://www.octapharma.com/us/patients.

Coordination at Optimed Immunology

Treatment with Octagam 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.octagam.com) provides the most current full prescribing and safety information. Treatment decisions and monitoring are individualized — please discuss with Dr. McNeil whether Octagam is appropriate for your situation.

Medically reviewed

Donald L. McNeil, MD · Board Certified in Allergy & Immunology and Internal Medicine

Last reviewed: November 2025 · Sources: FDA prescribing information · manufacturer label · AAAAI · ACAAI · relevant clinical guidelines

This page is provided for educational purposes only and is not medical advice. If you have an emergency, call 911.

Have questions about Octagam?

Treatment selection is a shared decision. Schedule a consultation with Dr. McNeil to discuss whether Octagam is appropriate for you.