Drug-Induced Lupus Erythematosus


DILE may be induced by medications or caused by other compounds in the environment.
DILE may be induced by medications or caused by other compounds in the environment. 
The most common drugs that cause drug-induced SLE are 
  •        hydralazine (rate roughly 20%), 
  •        procainamide (rate roughly 20%, 5-8% if taken for 1 y), 
  •        quinidine,
  •        isoniazid, 
  •        minocycline.
Drugs most commonly associated with drug-induced SCLE include 
  •       calcium-channel blockers, 
  •       angiotensin-converting enzyme inhibitors, 
  •       thiazide diuretics,
  •       terbinafine, 
  •       TNF-alpha antagonists.

Several broad drug categories have been linked to DILE, including the following:
  • Antiarrhythmics - Procainamide and quinidine
  • Antibiotics – Minocycline and isoniazid
  • Antifungals - Griseofulvin and voriconazole
  • Anticonvulsants - Valproate, ethosuximide, carbamazepine, and hydantoins
  • Hormonal therapy - Leuprolide acetate
  • Antihypertensives - Hydralazine, methyldopa, and captopril
  • Anti-inflammatories - Penicillamine and sulfasalazine
  • Antipsychotics - Chlorpromazine
  • Cholesterol-lowering agents - Lovastatin, simvastatin(DISCLE), atorvastatin, and gemfibrozil
  • Biologics - Interleukins (eg, IL-2), interferons (eg, alfa, beta, gamma), and TNF-α (etanercept, infliximab, adalimumab)
  • Inhalers - Tiotropium bromide inhaler
  • Other drug categories - Ophthalmic timolol
Additional drugs that may cause DILE include the following:
  • Acebutolol
  • Amiodarone (SLE and SCLE)
  • Atenolol
  • Bupropion
  • Cefepime
  • Diltiazem
  • Docetaxel
  • Doxorubicin (DISCLE)
  • Doxycycline (DISCLE)
  • Esomeprazole (DISCLE)
  • Fluorouracil
  • Glyburide
  • Gold salt
  • Hydroxychloroquine
  • Imiquimod (DISCLE)
  • Lamotrigine
  • Lansoprazole (DISCLE)
  • Lithium
  • Mephenytoin
  • Nitrofurantoin
  • Olanzapine
  • Omeprazole (DISCLE)
  • Oral contraceptives
  • Phenytoin
  • Practolol
  • Propylthiouracil
  • Reserpine
  • Rifampin
  • Rifamycin
  • Sertraline
  • Tetracycline
  • Ticlopidine
  • Trimethadione
A genetic predisposition may play a role. Hydralazine-induced DILE has been observed with increased frequency in association with human leukocyte antigen (HLA)-DR4.
Intrinsic genetic susceptibility may help explain why some patients experience DILE as a reaction to drug therapies, whereas others do not. For example, the rate of acetylation is genetically predetermined. In the United States, the population is almost evenly divided between those who are fast acetylators and those who are slow acetylators. Those with slow acetylation rates have a higher prevalence of DILE than those with faster acetylation rates. In contrast, SLE affects individuals with slow and fast acetylation rates approximately equally.
Other causes may induce DILE in certain individuals for no apparent reason, such as sensitivity to the following:
  • Insecticide compounds
  • Certain metallic compounds
  • Eosin (a fluorescent acid dye found in some lipsticks)
Drugs that cause flares of SLE are as follows:

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