Infliximab Overview, Dosage, How to Take, Side Effects and Important Warnings

What is Infliximab? Infliximab (trade names Remicade among others) is a chimeric monoclonal antibody biologic drug that works against tumor necrosis factor alpha (TNF-α) and is used to treat autoimmune diseases. Infliximab was approved by the U.S. Food and Drug Administration (FDA) for the treatment of Crohn’s disease, ulcerative colitis, psoriasis, psoriatic arthritis, ankylosing spondylitis, and rheumatoid arthritis.

What is the dosage for Infliximab?

  • Infliximab is administered intravenously. The recommended dose is a 5 mg/kg infusion at 0, 2, and 6 weeks and then 5 mg/kg every 8 weeks for moderate to severe active Crohn’s disease or fistulizing Crohn’s disease in adult or pediatric patients. Adults who initially responded then lost response may be treated with 10 mg/kg
  • The recommended dose for the treatment of moderately to severely active rheumatoid arthritis is 3 mg/kg at 0, 2, and 6 weeks followed by 3 mg/kg every 8 weeks. Infliximab should be combined with methotrexate. If response is incomplete, up to 10 mg/kg or treating every 4 weeks may be tried
  • Ulcerative colitis, psoriatic arthritis, and plaque psoriasis are treated with a 5 mg/kg infusion at 0, 2, and 6 weeks and then 5 mg/kg every 8 weeks
  • Ankylosing spondylitis is treated with a 5 mg/kg infusion at 0, 2, and 6 weeks then 5 mg/kg every 6 weeks