coriciden cough and cold.
NO NO NO! Taking Triple Cs for the sake of a dextromethorphan high is dangerous because DXM is not the only active ingredient in the pill. It also contains chlorphenamine maleate and guaifenesin. Guaifenesin will cause nausea and projectile vomiting; CM will make your stomach and anus bleed and you'd likely end up in the hospital.
If you want to use DXM, Robitussin cough gels. They contain ONLY DXM and no other active ingredients.
Drink all the stuff under the sink.
Hah, what's the worst that could happen?