NSAIDS AND WARFARIN AND OTHER ORAL ANTICOAGULANTS - AZAPROPAZONE, KETOROLAC, OXYPHENBUTAZONE, PHENYLBUTAZONE 
The anticoagulant effects of warfarin are markedly increased by azapropazone, ketorolac, oxyphenbutazone and phenylbutazone.    
   Concurrent use is contraindicated.
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