Pain
"I can exercise now in less pain.  Make sure you get the correct dosage that you feel comfortable with. If you take too little of a dosage, you may still have pain and lose hope in the medicine. It happened to me. I ended up doubling my dosage from 300mg to 600mg a day and feel so much better. I take 300mg twice a day as needed. I was originally on 100mg a day and it did nothing for me. Most people start off with 300mg."