>>627009DXM isn't "purple drank". That's codeine and promethazine. DXM is in many otc syrups while codeine is a prescription opiate. Sone syrups can be lethal to chug if you drink too much, and DXM has very different effects, described as "plateaus" depending on how much you take. I wouldn't recommend it, but I'd especially not recommend the syrup marked as lasting 12 hours, because that goes for the trip as well. I remember feeling tense and robotic, yet unable to smile. Look on Erowid to find out more before you do anything. Experiences, warnings, and dosage info on all kinds of recreational drugs are available there.