"Sulfasalazine is a compound of 5-aminosalicylic acid (5-ASA) and sulfapyridine joined by an azo bond, used in the treatment of chronic inflammatory bowel disease. Fatal toxicity of sulfasalazine is related to blood dyscrasias due to its effects on the bone marrow."
"classic triad of breathlessness, fever and cough: 42%"
"As with eosinophilic pneumonia, a high eosinophil count in bronchoalveolar lavage is characteristic of the condition 3. There is an overlap with other pathological entities, such as organising pneumonia and acute interstitial pneumonia."