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Infliximab

Brand names: Remicade, Inflectra, Renflexis, Zymfentra

Infliximab is an IV (or self-injected) biologic for Crohn's disease, ulcerative colitis, rheumatoid arthritis, psoriasis, and more.

Brand namesRemicade, Inflectra, Renflexis, Zymfentra
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

IV infusions are given every 8 weeks after starter doses.

What it's used for

  • Crohn's disease and ulcerative colitis
  • Rheumatoid and psoriatic arthritis
  • Ankylosing spondylitis
  • Psoriasis

How to take it

  • Given by IV in a clinic over about 2 hours.
  • You'll be tested for TB and hepatitis B before starting. Avoid live vaccines.

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

  • Infusion reactions
  • Headache
  • Colds
Call your provider todayFever, chills, sore throat, or other signs of infection
Call 911Hives, trouble breathing, or chest pain during an infusion
Call your provider todayYellow skin or eyes

Warnings

  • Boxed warnings: serious infections and some cancers.

Other medicines, foods, and alcohol

  • Don't combine with other biologics.

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

Pregnancy and breastfeeding

Often continued in pregnancy. Talk with your provider.

Missed doses, overdose, and storage

If you miss a dose

Call your clinic to reschedule as soon as possible.

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

Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.

Conditions it's used for

Sources

Last updated 2026-11-13.