• N A Ettinger and R J Albin.
• Department of Medicine, Washington University School of Medicine, St. Louis, Missouri 63110.
• Am. J. Med. 1989 Dec 1; 87 (6): 664-8.

AbstractA variety of pulmonary complications related to the use of freebase cocaine have been reported in the medical literature. Pulmonary barotrauma, hypersensitivity pneumonitis, pulmonary hemorrhage, obliterative bronchiolitis, asthma, and pulmonary edema have all recently been described. The number of reports are few, reflecting either the low incidence of these complications or the lack of recognition of these phenomena as cocaine-related illnesses. The mechanism by which freebase cocaine can injure the lung is not well defined. Whether an abnormal immunologic response to cocaine freebase can result in hemorrhage, pneumonitis, bronchiolitis, or asthma remains speculative. Whether cardiogenic or non-cardiogenic factors play a role in the development of pulmonary edema in freebase smokers has not yet been determined. Likewise, the roles of either cocaine, tobacco, or adulterants in producing the observed abnormalities of lung function remain controversial. Further reporting of freebase-related pulmonary complications, as well as the development of appropriate animal models, is needed.

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