I am suffering from ankylosing spondylitis. I have been on enbrel (50 mg) a week for the past 3 months. My doctor is recommending i carry on taking the shots as it has helped me a great deal. How long should i continue and what are the possible side effects apart from the higher risks of infection? I am 36 years, married from India.

Summarized question: How long should Enbrel be taken for treatment of ankylosing spondylitis?