Cheratussin AC - seperation - tip form a DARE Cop

[OxyMan]

OK, so SWIM got a bottle of Cheratussin AC
Ingrediants:
100 mg guaifenesin and 10 mg codeine phosphate per 5 mL
3.5% alcohol
118 mL of solution total

What SWIM wants to do is seperate the codeine and the guaifenesin for obvious reasons.

SWIM somehow remembers a DARE officer talking about just how to do this in DARE class ages ago.

The officer said that people would tie the bottle to an end of a rope, and spin it around for a centrifuge like effect. to seperate the two guaifenesin and codeine into two separate layers.

Now, he didn't mention any specifics of course. However, I wonder how long it would take of the swinging for the two ingredients of interest to seperate into pure guaif and codeine.

SWIM would also need to know how to then extract just the codeine from that seperated concoction. Maybe a pipette? Also it would be necessary to know if the codeine would be on top or underneath.

Sounds very possible to me.

Any thoughts? Suggestions? Any one do this before?

Thanks DARE!