Yes. It is an instrument used in the consumption of drugs.
Or do you mean musical instrument? TL;DR: It can be.
It comes down to how wide you want the definition of "musical instrument" to be. Is a drumstick a musical instrument? Is it what makes a drum designed to be played with sticks an instrument? What is such a drum without at least one stick?
"Well I could hit the drum with something else." Sure, but does that make the "something else" the instrument?
What is a woodwind (musical) instrument without the player's breath? A saxophone without a reed?
"I could smack it on something."
Well, yes, that's the crux of it.
In the loosest sense, anything that can be used to make a noise is a musical instrument. Take the popular joke of mayonnaise: if you put a straw in it and blow, I'm willing to bet some sort of noise can be had.
This then brings in the other argument: what counts as musical?