I did some searching this evening and found some interesting Bits and Pieces.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1879053/pdf/canmedaj01503-0008.pdf
An excerpt from this article was of interest and I tried to find the Bill mentioned, but it wasn't popping up (and it is getting late here). "Until this year the most glaring legal prejudice against people with epilepsy
in Canada was in our immigration laws. The bill now before the House of Commons will remove the specific mention of people with epilepsy as a prohibited class. For many years the exclusion of these people from immigration continued an attitude towards epilepsy that should have disappeared in the last century. We applaud this change in our laws, late though it may be." (The year was 1977.)
More investigation on a Canadian Government site also indicated that drugs to treat epilepsy could be determined by urinalysis.
I hope this will help you make the right decision. Good Luck.