Meloxicam
"I am 63 yr old softball playing male who developed severe knee pain.  My orthopedic doctor told me arthritis and wrote me a prescription of 7.5 mg Meloxicam  once a day.  I tried to get through my  week with 2 or 3 pills due to possible bad side effects. I found that it works much better if you take daily.  This drug is much better than over the counter meds.   I wish the side effects were not so severe but I do enjoy walking and my softball again."