Following on from a recent visit to my consultants my Enbrel (Eterercept) will be changed to Benepali, a biosimilar which is cheaper the Enbrel. I've been on Enbrel since 2005 and Methotrexate for the last two years lets hope the new one works as well. As to the weather and arthritis. I can attest to the warmer it is the better I am; to a point, when, after a twenty mile bike ride I seize up!! Then bring on the drugs and pain killers.