Abstract
The use of bromocriptine in the treatment of Parkinson's disease is increasing. More than 20 cases of suggested drug-induced pleuropulmonary disorders during bromocriptine therapy have been reported. We describe four male parkinsonian patients taking bromocriptine in whom pleuropulmonary abnormalities were discovered in a pulmonary hospital during a one-year period. In only one case were the roentgenographic changes reversible after withdrawal of the drug. Pleural fluid from two patients was analyzed and showed lymphocyte-predominant chronic inflammatory changes. Raised erythrocyte sedimentation rate (ESR) and C-reactive protein values decreased after cessation of bromocriptine. Lung function studies demonstrated volume restriction with normal or high CO transfer coefficient. The frequency of pleuropulmonary changes during bromocriptine therapy may be greater than assumed, and such patients may initially present with nonrespiratory symptoms. Follow-up of patients during bromocriptine treatment by ESR, C-reactive protein, and chest roentgenogram is recommended.
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