I seem to be having better pain relief with meloxicam 50 mg daily, better than ibuprofen or diclofenac which have shorter half lives. I hadn't considered taking Tylenol along with the meloxicam, is there evidence that the two taken together are synergistically better than each taken at separate times of the day? Is there any clinical evidence that HLA injections in the knees (series of 3 injections weeks apart) are effective?