Naproxen
osteoarthritis
"I was prescribed this to help with an inflamed joint in my foot.  Historically, I had taken Aleve, but didn't like the drug because I felt it didn't really work.  Last time I took it, it work in the 11th hour of 12 hurt effectiveness time range and was gone by hour 12. But the doctor insisted I take it this time.  I took it for a little more than a week and on the 10th day, I woke up to horrible chest pains.  I'm 36 years old and don't believe I have a heart condition.  I stopped taking the pills and the pain in my chest lessened towards the end of the day.  However, my blood pressure was through the roof, when I'm characteristically low, and my resting pulse rate was 114.  I also spiked a fever in the same day.  
Days later, still symptoms"