I think marijuana's active ingredients hold a lot of promise. Of course you're right about the amount given the mice. They do that with a lot of substances they're testing. Remember red dye #2?
Marijuana has been shown to help glaucoma, macular degeneration, and nausea caused by many things including chemotherapy. I believe that God put these substances on earth for a reason. I keep voting to legalize, the rest of us do, it passes, then the courts tell us we're stupid and invalidate our vote. I don't smoke pot.
Btw, just make brownies. That way you don't need to blow pot smoke directly into the mouse's lungs ;-)
Promise for ... what? First of all, it cures nothing. It's used to relieve symptoms. Second, for each of the conditions you mentioned there are already 10 FDA approved drugs out there proven do the job better and safer.
Yes, scientists are researching some compounds contained within marijuana that appear to help with some diseases. But to conclude that smoking marijuana is therefore beneficial is like saying that because some chemical compound contained in gasoline helps with sore muscles, gasoline is safe to drink.
Lastly, if you, as an investor, had $50 million to invest in medical research, would you spend that money on researching marijuana for glaucoma?