Lets take another example. Propofol. Can give you a hell of a trip, I heard it say.
Either way.
Use it wrongly and you are on the worst hallicunations ever.
So, the only people to get on this drug are those with access and expert knowledge.
Morphium is a big issue mainly because so many people heard about it.
Some patients do not respond to it at all. No receptors. You couod throw any dosage at them.