Leflunomide
"I have been taking leflunomide for about 8 months.  The results have been very good.  It took about three or four months to kick in, but my pain is virtually gone.  Oddly, I have developed very brittle finger nails  and my hair has gone from straight to wavy.  The only other medicine I take is a blood pressure pill.  So I can only assume this change came from the leflunomide."