Getting into the military with epilepsy.

Hello, I tried to get into the Army when I was 18 but they denied me because they couldn't guarentee that I would or could get my medication on a daily basis!  It makes sense!  Now my 17 year old son has plans of joining the Navy.  I've told him what I went through and what they told me but he's already talked to recruiters that have told him that he could get in.  Do different branches have different rules for enlistment?  I've already made my son promise me that he wouldn't enlist until after Bush is out, but Bush has created such a mess it's going to take years to clean up his mess and to get our troops out safely!  My son's grades aren't good and I've already been told that the Navy won't take him unless he has at least a C average, so that sets my mind at ease!  Does anybody have any first hand knowledge regarding getting into the armed forces with E.