Metamizole inhibits arachidonic acid-induced platelet aggregation after surgery and impairs the effect of aspirin in hospitalized patients.
Christian PfrepperS DetersM MetzeR SiegemundI GockelS PetrosPublished in: European journal of clinical pharmacology (2019)
The reason why some patients have a long-lasting inhibitory effect of metamizole on COX-induced platelet aggregation that might interfere with ASA should be investigated in a larger cohort of patients.