Which Robitussin (DXM) to take for a trip?

I've taken Robitussin DM many times to get a DXM trip. Make sure the ingredient on the back of the robitussin box is DEXTROMETHORPHAN HBR. Not dextromethorphan polistrex, this is time released and you'll have to puke it back out to feel any kind of psychadelic effects. If you want to make it easier on yourself, just take a box(16 pills) of CORICIDIN COUGH&COLD PILLS ( Triple C ) It'll be just as effective as a bottle of robitussin. And if you really want to get tripped out, take half (8) of the red triple C, and drink a bottle of regular Robitussin containing Dextromethorphan HBR. I did this, and i accidently ate a napkin at the dinner table, my dad laughed his *** off.- peace