My son is 33 years old. He was just diagnosed having ankylosing spondylitis, he has been on Nsaid pills, but those are causing gastrointestinal bleeding. He was and he still is a very active person , he played football and soccer and basketball all through high school and university, he still goes to the gym every day. His doctor adviced him to start him on Enbrel (etanercept), the thing that scares me is it has so many side effects. Can anyone please reply if you have the same condition and would you advice him to start on Enbrel? has it been beneficial? please someone advice us.