Drug-induced lupus erythematosus
Drug-induced lupus erythematosus is an autoimmune disorder that is triggered by a reaction to a medicine.
Autoimmune disorder
An autoimmune disorder occurs when the body's immune system attacks and destroys healthy body tissue by mistake. There are more than 80 autoimmune d...
Read Article Now Book Mark ArticleCauses
Drug-induced lupus erythematosus is similar but not identical to systemic lupus erythematosus (SLE). It is an autoimmune disorder. This means your body attacks healthy tissue by mistake. It is caused by a reaction to a medicine. Related conditions are drug-induced cutaneous lupus and drug-induced ANCA vasculitis.
Systemic lupus erythematosus
Systemic lupus erythematosus (SLE) is an autoimmune disease. In this disease, the immune system of the body mistakenly attacks healthy tissue. It c...
Read Article Now Book Mark ArticleThe most common medicines known to cause drug-induced lupus erythematosus are:
- Isoniazid
- Hydralazine
- Procainamide
- Tumor-necrosis factor (TNF) alpha inhibitors (such as etanercept, infliximab and adalimumab)
- Minocycline
- Quinidine
Other less common drugs may also cause the condition. These may include:
- Anti-seizure medicines
- Capoten
- Chlorpromazine
- Methyldopa
- Sulfasalazine
- Levamisole, typically as a contaminant of cocaine
Cancer immunotherapy drugs such as pembrolizumab can also cause a variety of autoimmune reactions including drug-induced lupus.
Symptoms of drug-induced lupus tend to occur after taking the drug for at least 3 to 6 months.
Symptoms
Symptoms may include:
- Fever
Fever
Fever is the temporary increase in the body's temperature in response to a disease or illness. A child has a fever when the temperature is at or abov...
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- Joint pain
- Joint swelling
Joint swelling
Joint swelling is the buildup of fluid in the soft tissue surrounding the joint or the joint itself.
Read Article Now Book Mark Article - Loss of appetite
- Pleuritic chest pain (sharp pain that is worse with breathing in)
Pleuritic
Pleurisy is an inflammation of the lining of the lungs and chest (the pleura) that leads to chest pain when you take a breath or cough.
Read Article Now Book Mark Article - Skin rash on areas exposed to sunlight
Skin rash
Rashes involve changes in the color, feeling or texture of your skin.
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Exams and Tests
The health care provider will do a physical exam and listen to your chest with a stethoscope. The provider may hear a sound called a heart friction rub or pleural friction rub.
A skin exam shows a rash.
Joints may be swollen and tender.
Tests that may be done include:
- Antihistone antibody
- Antinuclear antibody (ANA) panel
Antinuclear antibody (ANA) panel
The antinuclear antibody panel is a blood test that looks at antinuclear antibodies (ANA). ANA are antibodies produced by the immune system that bind...
Read Article Now Book Mark Article - Antineutrophil cytoplasmic antibody (ANCA) panel
- Complete blood count (CBC) with differential
Complete blood count (CBC)
A complete blood count (CBC) test measures the following:The number of white blood cells (WBC count)The number of red blood cells (RBC count)The numb...
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- Urinalysis
Urinalysis
Urinalysis is the physical, chemical, and microscopic examination of urine. It involves a number of tests to detect and measure various compounds th...
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A chest x-ray may show signs of pleuritis or pericarditis (inflammation around the lining of the lung or heart). An ECG may show that the heart is affected.
Chest x-ray
A chest x-ray is an x-ray of the chest, lungs, heart, large arteries, ribs, and diaphragm.
Read Article Now Book Mark ArticleECG
An electrocardiogram (ECG) is a test that records the electrical activity of the heart.
Read Article Now Book Mark ArticleTreatment
Most of the time, symptoms go away within weeks after stopping the medicine that caused the condition.
Treatment may include:
- Nonsteroidal anti-inflammatory drugs (NSAIDs) to treat arthritis and pleurisy
- Corticosteroid creams to treat skin rashes
- Antimalarial drugs (hydroxychloroquine) to treat skin and arthritis symptoms
If the condition is affecting your heart, kidney, or nervous system, you may be prescribed high doses of corticosteroids (prednisone, methylprednisolone) and immune system suppressants (azathioprine or cyclophosphamide). This is rare.
When the disease is active, you should wear protective clothing and sunglasses to guard against too much sun.
Outlook (Prognosis)
Most of the time, drug-induced lupus erythematosus is not as severe as SLE. The symptoms often go away within a few days to weeks after stopping the medicine you were taking. Rarely, kidney inflammation (nephritis) can develop with drug-induced lupus caused by TNF inhibitors or with ANCA vasculitis due to hydralazine or levamisole. Nephritis may require treatment with prednisone and immunosuppressive medicines.
Avoid taking the drug that caused the reaction in future. Symptoms are likely to return if you do so.
Possible Complications
Complications may include:
- Infection
- Thrombocytopenic purpura -- bleeding near the skin surface, resulting from a low number of platelets in the blood
Thrombocytopenic
Thrombocytopenia means there is an abnormally low amount of platelets. Platelets are parts of the blood that help blood to clot. This condition is ...
Read Article Now Book Mark Article - Hemolytic anemia
Hemolytic anemia
Anemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues. Normally, red ...
Read Article Now Book Mark Article - Myocarditis
Myocarditis
Myocarditis is inflammation of the heart muscle. The condition is called pediatric myocarditis when it occurs in children.
Read Article Now Book Mark Article - Pericarditis
Pericarditis
Pericarditis is a condition in which the sac-like covering around the heart (pericardium) becomes inflamed.
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When to Contact a Medical Professional
Contact your provider if:
- You develop new symptoms when taking any of the medicines listed above.
- Your symptoms do not get better after you stop taking the medicine that caused the condition.
Prevention
Watch for signs of a reaction if you are taking any of the drugs that can cause this problem.
Reviewed By
Neil J. Gonter, MD, Assistant Professor of Medicine, Columbia University, New York, NY, and private practice specializing in Rheumatology at Rheumatology Associates of North Jersey, Teaneck, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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Richardson B. Drug-induced lupus. In: Hochberg MC, Gravallese EM, Smolen JS, van der Heijde D, Weinblatt ME, Weisman MH, eds. Rheumatology. 8th ed. Philadelphia, PA: Elsevier; 2023:chap 140.
Rubin RL. Drug-induced lupus. Expert Opin Drug Saf. 2015;14(3):361-378. PMID: 25554102 pubmed.ncbi.nlm.nih.gov/25554102/.
Vaglio A, Grayson PC, Fenaroli P, et al. Drug-induced lupus: traditional and new concepts. Autoimmun Rev. 2018;17(9):912-918. PMID: 30005854 pubmed.ncbi.nlm.nih.gov/30005854/.