I have been smoking weed for 20+ years [yes, I am OLD!] And I find it is truly the only thing thing that helps me everytime I partake. If I feel sick

it makes the nausea go away, if I am in pain, it helps my pain, if I am upset and amped up it calms me down. It is medicine!

And yes, I take zyprexa when needed, only very occasionally......so far this year I have had take it only a handful of times. I only use it for major freakouts w/psychosis [I am Bipolar 1 w/psychotic features]
I take a very small dose of mood stabilizer, and valium as needed [and that is not very often!]

is the best medicine, IMO. And healthy lifestyle is key.