going from avonex to campath

I was diagnosed with relapsing remitting ms in 2005 and have been on avonex ever since. I have recently had an MRI scan and have been told that it is becoming more active. I feel like I have been relatively lucky so far in that my relapses have been fairly mild and lot of it sensory as opposed to mobility. However the relapses I am gettin are beginning to increase and with tis MRI scan I am now being offered campath. Has anyone changed from avonex to campath and how has this been? I have heard the side effects from campath can be pretty nasty. I am only 28 and have not started a family yet either and am worried in case this medication effects that. Can anyone please give me any advice and help me make this decision whether to carry on what I am doing with avonex or change to campath. Thanks. X

Like you I was diagnosed in 2005 and went on to Avonex. Unlike you, my relapses did affect my mobility as well as sensory and I was lucky to have the opportunity to have Campath in 2007. I have now had 3 sets of treatment 2007, 2008 and 2011 and have only had one minor relapse in all that time. For me, having Campath has been the right decision, but there can be side effects. I had an overactive thyroid (which about a third of people get after Campath) but this was controlled with tablets and I feel was a price worth paying for stopping the relapses. Everyone is different and only you can decide which risks you are prepared to accept when making treatment decision. Good luck with whichever option you decide