Hi All Abatacept users. Have found out about injecting it now I'd like to know what experience people have had on it. I have previously had two anti TNF's and one biologic - Rituximab - all of which worked great but they all messed up bits of me so had to come off them. Am comfortable with self injecting but have not had any Abatacept previously so would be grateful to know how long it takes to work, if there are any side effects that I really won't want to put up with and has anyone had any reaction to it on the administration day or after ?? Heaps of thanks in advance to those of you I know will give great feedback.