Getting off ABC drugs

Hi all - I've been on the diet since February, feeling much better with still occasional sensory symptoms but no new lesions on the MRI. I've been taking Avonex since 2005, and honestly am just tired on being down, depressed and tired all the time, (not sure it's primarily due to the medication, but I'm sure they're not helping). I would like to get off the medication but obviously worried about what this would do to the progress of the disease.

I would greatly appreciate anyone's experience regarding getting off ABC drugs, any negative or positive side effects, and whether you would recommend it!

Thanks.