The results of a set of experiments conducted on a new non-steroid antirheumatic preparation--pyrasanone (Carudol)--are presented and its indications in the general management of the disease are noted. The pharmacokinetics and therapeutic efficacy of the new drug are described. Statistical analysis showed it to be more effective than hexahydropyrazine, diphenylbutazone, indomethacin and oxyphenbutazone. A basic therapeutic approach is suggested in accordance with the pharmacodynamic aspects of the drug and the results observed in a clinical trial on 719 subjects. Pyrasanone has low toxicity and is well tolerated. Due caution in the administration of antirheumatic drugs should nevertheless be maintained during its use.
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Agranulocytosis and liver damage associated with pyrazinobutazone with evidence for an immunological mechanism.
J Rheumatol
November 1989
Faculty of Medicine, University Hospital of Santa Maria, Lisbon, Portugal.
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