I have had very vivid dreams for as long as I can remember and I've been epileptic since childhood. I was on cannabis years ago and now on cbd and have had no change in my dreams.

i have both, i have seizure meds since i was a kid (30+ years ago) and i just started cbd oil (5+ years ago).
cbd does not have any side effects (that i know of). cbd with thc... then you have the side effects.
some seizure meds do have weird and/or scary dreams. i know for a fact that i have weird and sometime vivid dreams when i take my night time meds.

I have experience with a medication in the past, that increased my dreams from 1 maybe 2 dreams a night, to 3 - 4 dreams a night. It was like I was watching different movies with different genres.
There were
The Nightmares
Happy dreams
The Weird and Unusual dreams
Vivid Dreams
Dreams created from a TV show the someone is watching during my sleep.
And others Genres

When I was taken off it , I stopped have so many dreams when sleeping. I was back down to 1 maybe 2 dreams.

ToChauHuynh, I believe mine have become more vivid than before the seizures started, although less so as I get older. However, I think it depends on which meds you are on. I definitely think the CBD oil helped make my dreams seem more real. That’s been my experience, anyway.

I have Nervious Bladder. A Urogynecologist prescribes it. She also prescribed physical therapy, which also helps. As for dreams, i do not remember mine.
Leslie