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Prescription medicine

Ofatumumab

Drug class: CD20-directed Cytolytic Antibody

The FDA’s “Established Pharmacologic Class”: the group of medicines that work in a similar way.

Official FDA data, not advice

Everything here comes from the U.S. Food and Drug Administration (FDA): the drug label, the NDC Directory, Drugs@FDA, recall reports and the drug shortage list. Each fact shows its source and date.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

In an emergency, call 911. If someone may have taken too much of a medicine, call Poison Help: 1‑800‑222‑1222.

Quick answers

What is Ofatumumab used for?
The FDA-approved label (Kesimpta, Novartis Pharmaceuticals Corporation, April 1, 2026) says: “KESIMPTA is indicated for the treatment of relapsing forms of multiple sclerosis (MS), to include clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease, in adults. …” This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.
Does Ofatumumab have a boxed warning?
No. None of the 1 FDA labels we found for this medicine has a boxed warning.
Is there a shortage of Ofatumumab?
No current shortage is listed by the FDA for the products of this medicine (FDA data from October 30, 2026).
Has Ofatumumab been recalled?
No recall linked to the products of this medicine appears in the FDA enforcement reports we use.
Who makes Ofatumumab?
1 company lists prescription products of Ofatumumab in the FDA NDC Directory, including Novartis Pharmaceuticals Corporation.

What Ofatumumab is used for

Quoted from the “Indications and Usage” section of the FDA-approved label.

KESIMPTA is indicated for the treatment of relapsing forms of multiple sclerosis (MS), to include clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease, in adults. …

— FDA label: Kesimpta, Novartis Pharmaceuticals Corporation, effective April 1, 2026. Read the full label on DailyMed →

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

Conditions named on the label

These condition names appear word for word in the label’s “Indications and Usage” text (matched with a reviewed table). Each page lists hospitals whose own websites name the condition.

Related medical specialties

Boxed warning

A boxed warning (“black box”) is the FDA’s strongest warning on a drug label, for serious or life-threatening risks.

The label quoted above has no boxed warning.

Forms and how it is given

Dosage formsInjection, solution
RouteSubcutaneous
Prescription products1 in the FDA NDC Directory
Brand namesKesimpta

What pharmacies pay (NADAC)

The National Average Drug Acquisition Cost (NADAC) is the average price U.S. retail pharmacies paid to buy one unit of a medicine (one tablet, one mL or one gram), from a monthly survey of pharmacy invoices by the Centers for Medicare & Medicaid Services (CMS). State Medicaid programs use it to pay pharmacies.

This is not the price you pay. What you pay depends on your insurance (copay or coinsurance), your pharmacy and any discounts, and pharmacies also charge for filling a prescription. Ask your pharmacist or your health plan what your price will be.

NADAC per unit for Ofatumumab, by strength and form
Strength and formGeneric or brandPharmacies pay
ofatumumab 20 mg/0.4 mL
injection, solution
Brand: Kesimpta $24,411.09 per mL

NADAC list of November 4, 2026; these prices took effect on October 21, 2026. Shown only where a package’s NDC code matches the NADAC list exactly, and only for that exact strength and form: nothing is averaged across strengths. Strengths and forms not listed here have no NADAC price.

Source: NADAC (National Average Drug Acquisition Cost) 2026, data.medicaid.gov (CMS) →

Companies that list this medicine

Labelers in the FDA NDC Directory: the company named on the package (maker or distributor), with the number of prescription products.

FDA approval history

  • BLA: Biologics License Application: how a biologic medicine (made from living cells) is approved.
Brand and biologic applications
ApplicationSponsorApprovedLater changes approved
BLA125326
ARZERRA, KESIMPTA
NovartisOctober 26, 2009 12, latest April 1, 2026
2026: Labeling · 2025: Labeling · 2024: Labeling

Shortage status

The FDA drug shortage list does not show these products.

FDA Drug Shortages database →

Recalls

No recall linked to these products (by their NDC code) appears in the FDA enforcement reports.

Official identifiers

RxCUI (RxNorm)2390949, 2390954
SPL set ID of the quoted label6a8a3f53-2062-48ff-9dbe-b939df133ca3
FDA labels (SPL)1
FDA applicationsBLA125326
Active ingredients (FDA)OFATUMUMAB

Sources

  1. FDA-approved label on DailyMed (National Library of Medicine) — Kesimpta, Novartis Pharmaceuticals Corporation, effective April 1, 2026; via openFDA, FDA data exported October 30, 2026, retrieved October 31, 2026
  2. NDC Directory (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  3. Drugs@FDA (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  4. Drug recall enforcement reports (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 27, 2026, retrieved October 31, 2026
  5. Drug shortages (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026

openFDA data is provided by the FDA as is; it may be incomplete. Always rely on the label that comes with your medicine. FDA Enforcement Report search →

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