Biogen Patient Assistance Program

Manufacturer copay assistance · Tysabri (J2323) · Biogen

Free · Maximum benefit No limit — free drug · Covers drug cost only — administration billed separately

OPEN
Status verified March 22, 2026 · Source: program site ↗

Program terms

Published terms from the manufacturer. Per-patient eligibility is confirmed at enrollment.

Assistance type
Free Drug
Patient pays
Free
Maximum benefit
No limit — free drug
What it covers
Covers drug cost only — administration billed separately
Insurance
medicare no commercial no medicaid
Processing time
2-4 weeks
Requires JC virus monitoring (PML risk). Monthly IV infusion at infusion center.

Medicare or Medicaid patient?

This manufacturer program excludes government insurance. Foundation disease funds are the route instead — status shown as of each fund's last verification.

What will the patient owe before assistance?

Run a benefits estimate for Tysabri — the program's cap applies against the patient share CareCost calculates.

Common questions

Does Tysabri have a copay card?

Yes — Biogen Patient Assistance Program from Biogen. Free. Commercial insurance is required; Medicare and Medicaid patients are not eligible.

How much does Tysabri cost with the copay card?

Free Maximum benefit: No limit — free drug. Covers drug cost only — administration billed separately

Who is eligible for Biogen Patient Assistance Program?

Accepted insurance: medicare. Not eligible: commercial, medicaid.

Patient or caregiver? Your infusion center's financial counselor can enroll you — or call the program at 1-800-456-2255.