- Rheumatoid Arthritis Slideshow Pictures
- Take the RA Quiz
- Joint-Friendly Exercises to Reduce RA Pain Slideshow
- What is tocilizumab, and how does it work (mechanism of action)?
- What brand names are available for tocilizumab?
- Is tocilizumab available as a generic drug?
- Do I need a prescription for tocilizumab?
- What are the side effects of tocilizumab?
- What is the dosage for tocilizumab?
- Which drugs or supplements interact with tocilizumab?
- Is tocilizumab safe to take if I'm pregnant or breastfeeding?
- What else should I know about tocilizumab?
What is tocilizumab, and how does it work (mechanism of action)?
Tocilizumab is an injectable synthetic (man-made) protein that binds to interleukin-6 (IL-6) in the body and blocks the effects of IL-6 in patients with rheumatoid arthritis. Inflammation is the body's reaction to injury and is a necessary process for the repair of injury. IL-6 is a protein that the body produces when there is inflammation. IL-6 promotes inflammation and the signs of inflammation, which, in the case of arthritis, includes fever as well as pain, tenderness, and swelling of the joints. The unchecked inflammation of rheumatoid arthritis eventually leads to destruction of the joints. Tocilizumab binds to IL-6 in the body and thereby blocks the effects of IL-6. As a result, inflammation and its consequences in the joints are reduced, and the progressive destruction of the joints is slowed or prevented. The FDA approved tocilizumab in January 2010.
What are the side effects of tocilizumab?
The most common adverse effects of tocilizumab in clinical studies were:
- respiratory tract infections,
- hypertension (high blood pressure), and
- elevations in liver tests suggesting liver injury.
Individuals with active infections should not be treated with tocilizumab. Tocilizumab may worsen or cause new diseases of the nervous system. In studies, some patients who used tocilizumab developed cancer. Other side effects include:
- reduced levels of white blood cells or platelets,
- reactivation of herpes zoster infection (shingles), and
- hypersensitivity (allergic) reactions.
What is the dosage for tocilizumab?
The recommended dose of tocilizumab is 4-8 mg/kg administered as a single 60 minute intravenous infusion every 4 weeks.
Which drugs or supplements interact with tocilizumab?
Tocilizumab has not been studied in combination with other similar drugs that block other chemicals that promote inflammation, for example, drugs that block TNF (for example, adalimumab [Humira]). Combining anakinra (Kineret), abatacept (Orencia), rituximab (Rituxan) with other antirheumatic drugs similar to tocilizumab resulted in a reduction in white blood cells in the blood (neutropenia), serious infections and no additional benefit. Tocilizumab may interfere with the effectiveness of vaccines. Live vaccines, including attenuated vaccines, should not be given to patients receiving tocilizumab.
Is tocilizumab safe to take if I'm pregnant or breastfeeding?
There are no adequate studies of tocilizumab in pregnant women.
It is not known whether tocilizumab is excreted in breast milk.
What else should I know about tocilizumab?
What preparations of tocilizumab are available?
Injection: 20 mg/ml
How should I keep tocilizumab stored?
Tocilizumab should be stored refrigerated at 2 to 8 C (36 to 46 F).
Quick GuideRheumatoid Arthritis (RA) Symptoms & Treatment
Multimedia: Slideshows, Images & Quizzes
Rheumatoid Arthritis Quiz: What is Rheumatoid Arthritis?
How is rheumatoid arthritis different from other forms of arthritis, such as osteoarthritis and gout? Take the Rheumatoid...
Rheumatoid Arthritis (RA) Symptoms & Treatment
What is rheumatoid arthritis (RA)? Learn about juvenile rheumatoid arthritis. Discover rheumatoid arthritis (RA) symptoms,...
Rheumatoid Arthritis (RA) Exercises Slideshow: Joint-Friendly Fitness Routines
Regular exercise boosts fitness and helps reverse joint stiffness for people with rheumatoid arthritis (RA). Our experts offer...
Related Disease Conditions
Rheumatoid Arthritis (RA)
Rheumatoid arthritis (RA) is an autoimmune disease that causes chronic inflammation of the joints, the tissue around the joints,...
Still's disease (systemic-onset juvenile rheumatoid arthritis) is a disorder characterized by inflammation with high fever...
Arthritis is inflammation of one or more joints. When joints are inflamed they can develop stiffness, warmth, swelling, redness...
Treatment & Diagnosis
Medications & Supplements
Prevention & Wellness
- Drug Beats Steroids for Controlling Blood Vessel Inflammation in Study
- New Treatments Helping Kids With Juvenile Arthritis
- Drugs Hold Promise for Severe Juvenile Arthritis Patients
- Newer Rheumatoid Arthritis Drugs Don't Raise Cancer Risk: Study
- Study: Actemra Tops Rival in Rheumatoid Arthritis
- Inflammation Might Play Role in Heart Disease: Study
Rheumatoid Arthritis Resources
Health Solutions From Our Sponsors
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
FDA prescribing information for Actemra