Just to be absolutely clear . . . IF YOU INJEST ENOUGH OF THESE TO GET HIGH ON DXM, YOU WILL ALSO MOST LIKELY END UP IN THE EMERGENCY ROOM CLINGING FOR YOUR LIFE. ^^^ Do not -ever- take Coricidin for it's DXM. There are many ways to get DXM that do not involve your organs failing.
polistirex isnt actually a coating, more like an edible plastic bound to the dextromethorphan hydrobromide that makes it get absorbed more slowly and steadily because of the extra molecule. vicks44 has too little bit of dxm, and too much menthol for me to drink, it always makes me puke and has less dxm than the same amount of robotussin syrup has. i dont use products with DM at the end because they have guaifenesin. delsym is my favorite and tussin gel caps from the 99 cent store are my second because they're only a dollar. a little bottle of delsym and a bottle of gelcaps is pretty cool, but a big bottle of delsym and a 4 oz robotussin an hour or two later is awsomely fantastic.