The authors report a case of hypersensitivity to carbamazepine presenting as an acute eosinophilic pneumonia and a probable hypersensitivity myopericarditis in a 54-year-old patient treated with carbamazepine for three weeks. Treatment consisted of stopping the carbamazepine and in prolonged corticosteroid therapy. The features of the hypersensitivity syndrome to carbamazepine are mentioned as well as the different pulmonary disorders attributable to carbamazepine.