You are making the assumption that the therapeutic substances are distinct from the mind-altering. I don’t see how you can do that.
the article says that specifically, high levels of cannabinol; low levels of THC
The article said that the active ingredient in decreasing the seizures is cannabidiol, which is not the psychoactive substance, tetrahydrocannabinol, that people use to get high.
I have not reviewed the medical literature to verify that cannabidiol is not (or is minimally) psychoactive.