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Drug-induced lupus erythematosus is an autoimmune disorder caused by chronic use of certain drugs. These drugs cause an autoimmune response (the body attacks its own cells) producing symptoms similar to those of systemic lupus erythematosus (SLE).
Drug-induced lupus erythematosus is a (generally) reversible condition that usually occurs in people being treated for a long-term illness. Drug-induced lupus mimics SLE. However, symptoms of drug-induced lupus generally disappear once the medication that triggered the episode is stopped.
Lupus erythematosus may manifest as systemic disease or in a purely cutaneous form also known as incomplete lupus erythematosus. Lupus has four main types: [citation needed] systemic; discoid; drug-induced; neonatal; Of these, systemic lupus erythematosus (also known as SLE) is the most common and serious form.
The oral drug, brepocitinib, did not meet the primary study goal of reduction in disease activity at week 52 in patients of SLE, in which the immune system that normally helps protect the body ...
Tumid lupus erythematosus is a rare, but distinctive entity in which patients present with edematous erythematous plaque. [ 2 ] Lupus erythematosus tumidus (LET) was reported by Henri Gougerot and Burnier R. in 1930.
Patients with drug-induced lupus erythematosus typically have positive tests for anti-histone antibodies but do not have indications for anti-dsDNA antibodies. Patients with idiopathic systemic lupus erythematosus have both types of autoantibodies present in their blood. Thus, this test can be useful in distinguishing these two illnesses. [9]
Drug eruptions are diagnosed mainly from the medical history and clinical examination. However, they can mimic various other conditions, thus delaying diagnosis (for example, in drug-induced lupus erythematosus, or the acne-like rash caused by erlotinib). A skin biopsy, blood tests or immunological tests can also be useful.
Typically, the symptoms of drug-induced SJS arise within a week of starting the medication. Similar to NSAIDs, paracetamol (acetaminophen) has also caused rare cases [28] [29] of SJS. People with systemic lupus erythematosus or HIV infections are more susceptible to drug-induced SJS. [11]