title: Hydrocodone snorting leading to hypersensitivity pneumonitis.
abstract: We present a case of hypersensitivity pneumonitis caused by intranasal abuse of the prescription narcotic hydrocodone. The patient's clinical course was complicated by acute respiratory failure. A chest radiograph showed diffuse bilateral opacities. The patient was treated with noninvasive ventilation, a high dose of intravenous steroids, and bronchodilators, resulting in improvement of symptoms and radiographic appearance.
authors.affiliation: Department of Hospital Medicine, Sanford Medical Centre, Fargo, North Dakota (Pathak), and Department of Medicine, University of West Indies, Trinidad (Vijayaraghavan).
authors.forename: Lakshmi Kant
authors.initials: LK
authors.lastname: Pathak
authors.affiliation: Department of Hospital Medicine, Sanford Medical Centre, Fargo, North Dakota (Pathak), and Department of Medicine, University of West Indies, Trinidad (Vijayaraghavan).
authors.forename: Vimala
authors.initials: V
authors.lastname: Vijayaraghavan