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Etanercept

Brand names: Enbrel, Erelzi, Eticovo

Etanercept is a self-injected biologic that calms inflammation in rheumatoid arthritis, psoriasis, and related conditions.

Brand namesEnbrel, Erelzi, Eticovo
Type of medicineBiologic (TNF blocker)
Prescription?Prescription
ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.

Overview

You'll be tested for TB and hepatitis B before starting.

What it's used for

  • Rheumatoid and psoriatic arthritis
  • Psoriasis
  • Ankylosing spondylitis
  • Juvenile arthritis

How to take it

  • Inject once or twice a week under the skin.
  • Let it warm to room temperature first. Rotate spots.

Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.

Side effects

Common side effects

  • Injection site reactions
  • Colds and sinus infections
Call your provider todayFever, chills, sore throat, or other signs of infection
Call your provider todayCough, night sweats, or weight loss (possible TB)
Call your provider todayNumbness, vision changes, or weakness (rare nerve problems)

Warnings

  • Boxed warnings: serious infections and some cancers.
  • Avoid live vaccines.

Other medicines, foods, and alcohol

  • Don't combine with anakinra or abatacept.

Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.

Pregnancy and breastfeeding

Talk with your provider.

Missed doses, overdose, and storage

If you miss a dose

Inject when you remember, then ask your provider how to continue your schedule.

If someone takes too much

Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.

Storing it

Keep in the refrigerator; don't freeze. It can be kept at room temperature for up to 14 days.

Conditions it's used for

Sources

Last updated 2026-11-13.