It depends on the kind of cannabis.
According to research of the Dutch government Bureau voor Medicinale Cannabis;
- In general high THC strains work and high CBD strains don't.
- 12 out of 13 high THC users in the past year are still using it now.
- less than 1 in 4 high CBD users in the past year is still using it now.
- The medical effect of high THC strains is rated with 7 points.
- The medical effect of high CBD strains is rated with 2 points.
- Moderate THC strains are the most effective*.
- Terpenoids determine the medical value**!
*The average daily dose of moderate THC users is 40% (!) lower than that of high THC users so in medical effect moderate THC is truly superior.
** That makes sense, because less cannabinoids mean more terpenoids (not using chemicals to convert terpenoids to cannabinoids), which really determine the medical value.
The more terpenoids in a strain the higher it gets rated by the users (independent of cannabinoids).
So forget about the cannabinoids and focus on the terpenoids as they will reliably tell you how medicinal a plant is.
We should also look at the right terpenoids, for example what is good for armedoldhippy, lots of pinenes that protect the bones, is bad for oldchuck, who wants terpenoids that lower motility like linalool, not that cause adverse events like pinene.
The soon we look beyond cannabinoids we will be able to see it's pinene, typically the second terpene in high CBD strains, that causes so many adverse events and it's linalool most of all that decreases seizures.