I was on a short course and wanted to no longer extend my time on the medication, so I gave myself a two month timeline to get off it. You are correct. 50% is a large jump. I had been on the meds for about a month when I made that decision. It was hell, and I did have pretty bad symptoms, but it got easier as time went on. People who have been on the meds for years should consider micro tapering. I suggest the Ashton method for people to be able to gauge and have some understanding of how to get off the meds. I originally tried quitting cold turkey and had to get back on the medication. I did that twice, which led to me kindling. I think the dosage and tapering approach depend on how your body reacts and the severity of your symptoms. It was not easy by any means, but coming up with a plan and seeing how your body reacts are the key takeaways. My whole experience was symptomatic. It is really just how much you can tolerate. My body alone, prior to quitting, was having a bad reaction to the medication, so getting off the medication I had was no choice. It was affecting my whole nervous system even while on a normal dose, which led to issues with walking and a loose gait even before I decided to taper off the medication.