Cannabis is a plant.
Humans use the plant in a variety of ways; one of them being manufacture of materials, such as hemp.
The other method of using the PLANT (a natural thing) is to smoke it.

I guess that we call it 'a drug', because it has a neuralogical effect (ie, psycodellic) on our brains when we smoke it.
We drink coffee to 'wake us up', we drink alcohol too...all of these things has an effect on our bodies - inevitable really, because they become a part of our 'contents'.
Like, if you put salt into water, the water becomes salty; the salt has affected the water by changing its chemical structure (ingredients)

Cannabis is not a drug, it is a plant - we use it AS a drug...

I dunno, maybe I'm not making sense...Prozac is a drug, because it is manufactured as such.

I'm gonna start rambling now, but fuck it....lmaooo

A cow is a cow.
But we use the cow in a variety of ways; manufacturing clothes, and for food.
When we eat the cow, it has an effect on our bodies....
The cow doesnt become food, until we eat it....therefore, it should follow that cannabis doesn't become a drug, until we use it as such...untill then , it is a plant - nothing more.

'Herb' is used as a term of endearment, I think, not as a classification of its plant-status.
Basil is a herb, as is Rosemary....they got married and had Herbie...which was a car...

...hang on.....errr...

Right, so yes...no, cannabis isn't a herb in the same vein as Thyme...but thyme waits for no man....and I'm tired......much like Herbie has tires..four of them....well, five, if you count the spare.....

Just think of it as 'grass'...another term of endearment....otherwise, we would have fields of 'grass' with cows eating it...which, when we eat the cows, would totally fuck us up, I think....hahaha, I wonder how many vegetarians there'd be then!!!

Yes, .....so, what was the question?