Sulfamethoxazole-NO (SMX-NO) is the major immunogen in sulfonamide allergy, producing modest ascorbic acid depletion and hemoglobin adduct formation. Sulfamethoxazole-NO haptens tissue proteins and is immunogenic in rodents.
References:
[1]. Lavergne S N, et al. Evaluation of the clinical, immunologic, and biochemical effects of nitroso sulfamethoxazole administration to dogs: a pilot study[J]. Toxicology, 2005, 208(1): 63-72.
















