Naproxen
"I have tendonitis in both elbows and ankles I am young and fit very active person a few months ago I could barely walk or hold a cup of water to my mouth without being in consent pain, I pushed through as much as I could but one day it got too much I went to my doctor who prescribed me 500mg Naproxen and instantly the pain has gone, I am back running and at the gym doing weights. I have had no side effects."