Hi.  I don't have experience w.r. to m.j. and complex partial control,
but was first put on Dilantin for 1+ years. When it didn't work my
Neuro changed me to 2 other medications (over about 3 years) until we
got a 'mix' that worked (Tegretol and Frisium in my case).
   My Doctor told me at the time that we're often started on Dilantin
as it's Older, longer studied so most of the potential side effects
and efficacy have been studied since about 1940? when it was first
used. So if it *had worked for you it's cheaper to use and better
studied so they could watch for side effects, etc.
  At one point (for about a year) he also prescribed Ativan
sublingual  -- a 'quick fix'  med that dissolves under the tongue that
helped when I got the Aura suggesting a stronger szr. might be about
to start.   It worked well for that, until I got a 'mix' that worked
to control my Complex Partial seizures.   Was that the type of Ativan
you meant?

    We had a Neurologist who used to post from time to time and might
have a Medical 'suggestion'  (not to be necessarily construed as
Direct medical advice wrt. using the other stuff with what you
take).   Several of the 'regulars' haven't posted for some time here,
so replies might be erratic to none.
   I had about 5 websites (subject something like 'Websites of use to
newer people')  if you want to search it out on this group's history.
Or if you can't *find it, repost here, and I'll see if I have an olde
copy still I can cut and paste into these threads.   **None of the
links I had had information about m.j., but had stuff like a
Medications Glossary (similar to what you should have from your
Pharmacy), First Aid for Seizures (on land or in water-- swimming),
and some other sites that were active in late 1990s.  (I haven't
checked those for quite a while so some might not even still be
active.)
    This is an International Group that once had 20-30 active members
in about 12 timezones, so was a good way to exchange information with
others around the world.    It started to become a Spambot Heaven in
early 2001-3 time period, so many regulars either *left, or just
stopped posting, or moved off to other groups or sites.   (I don't
have the addresses of those since when I was newly diagnosed (late
1990s  :-o  )  this was an excellent place to start.
   You could check in here from time to time over next week or so to
see if others are still reading the group and have experiences or
replies to share.   I'll look through my older bookmarks later
tomorrow to see if I still have any links that might be of some use.
   The U.S. Ep. Foundation main site used to be http://efa.org  and I
think had a Search function you could try enter search fields on to
see if there's anything *current that's of use to you.  *Or there's
Google if you can decide what search items might work to bring up old
posts on 'all groups'  that might not be in the history here.  (In
case you haven't used Google, you refine a Search using '&' without
spaces to bring in less than several thousand hits (!!!)  like
'seizures&marijuana&sideeffects'  or just the first 2.  Google will
try find items of *most use to you and sort them the way it thinks
works best from most likely to least likely. I found that often the
first *5 or so are all that are accurate, and after that the
likelihood of useful information on searches drops off rapidly.
    There are likely other search engines around too, but most of the
early stuff I needed I found with above type search and *this group.
Too bad that Trolls and 'varmints'  from 'away' corrupted the original
intent of the group, as it was *really helpful and had lots of people
and information available when it was most active.       G./