Intolerance reactions due to the selective cyclooxygenase type II inhibitors rofecoxib and celecoxib. Results of oral provocation tests in patients with NSAID hypersensitivity

Roland Kruse, Thomas Ruzicka, Markus Grewe
Acta Dermato-venereologica 2003, 83 (3): 183-5
Intolerance reactions due to the ingestion of non-steroidal anti-inflammatory drugs (NSAIDs) are frequent emergencies. It is thought that inhibition of the isoenzyme cyclooxygenase type I (COX-1) is responsible for the common NSAID-associated adverse effects, whereas inhibition of COX-2 is mainly responsible for the therapeutic effects. The goal of our study was to estimate the frequency of intolerance reactions due to ingestion of the two newly approved selective COX-2 inhibitors, rofecoxib or celecoxib. In a sample of 13 patients who had previously documented NSAID hypersensitivity reactions to non-selective COX inhibitors, 2 patients (15.3%) showed intolerance reactions (2 of 9 patients with rofecoxib, 1 of 5 patients with celecoxib). These drugs cannot therefore be administered uncritically to patients with known NSAID hypersensitivity. Selective COX-2 inhibitors can only be used as alternative drugs in these patients after assessing their specific tolerability in a properly performed provocation test.

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