Alright man. First of all,
never take drugs unless you've properly researched. Seeing as how you passed on
www.erowid.org to someone in another thread, I would've figured you for one to do so.
Second, Robitussin is OTC. There's no age limit. You have no excuse for using a potentially dangerous preparation.
Third, with any research, you'd have known how much to consume. Google "DXM FAQ". He tells you
everything you need to know about it. Don't be lazy about reading what you need to know off the FAQ.
I recommend a green bottle of Vicks 44 (240mg), or a bottle of Robitussin Cough Extra Strength (356?mg).
And about whether or not anyone has any experiences with DXM, I have over a hundred. I've had many great times with it, and a couple bad. If more people were a little bit educated about dextromethorphan before they rushed into it irresponsibly, it wouldn't have the
horrible name it does. It can be and is a beautiful drug when taken correctly, and with the correct dosage.
Pleasure as always. Peace.