Adalimumab
"I too was on Enbrel for about 6 months (for reiter's syndrome)  it worked well at first. Around month 5 stopped working. Went to Humira (1 month now) So Far it has worked wonders. I noticed improvement after a few days. Seemed to weaken after week 2, after 2cd shot taken, back up and feeling strong. (probably builds up in system) I'm feeling more energetic, like my old self. First time in years, I'm thinking of going back  to work. Hope it keeps working.
Reiters syndrome 20 years, recently Crohnes disease.
Cost of Humira 20.00 (with my insurance) no insurance, I understand its about 2,000 month? I also understand if you contact Humira, may get it for free or very large discount. Other insurance? All over the $ board. 
So far Humira is great"