Do not take this medicine with any of the following medications -cidofovir -methotrexate -other nsaids, medicines for pain and inflammation, like ibuprofen or naproxen -pemetrexed this medicine may also interact with the following medications -alcohol -aspirin and aspirin-like drugs -diuretics -fluconazole -lithium -medicines for high blood pressure -steroid medicines like prednisone or cortisone -warfarin.