TNF and drug-induced lupus erythematosus: Drug-induced lupus (DIL) is an autoimmune phenomenon characterized by symptoms resembling those of systemic lupus erythematosus (SLE) after exposure to certain drugs. Commonly implicated drugs include hydralazine, procainamide, quinidine, methyldopa, isoniazid, minocycline, and tumor necrosis factor inhibitors like etanercept and infliximab [1].