To InfamousG, I weigh 230 and I'm, also, 6 foot and my first time I seriously tried DXM I did an entire 4 oz bottle of Robitussin Maximum Strength Cough. That's 354 MGs of DXM.

Now, a few things before you do it, make sure your stomach is empty. I can't really stress this enough. About my fourth time I had just got done with a cookout about 2 hours before I took the syrup. I had three hotdogs, and some chips and dip while stoned, right? Well...my high was wearing off, was gonna do the DXM and smoke more.
Wellllll....I drank the bottle and about an hour and 15 minutes after, I was laying on my bed taking deep breaths in and out and saying, "You're not gonna puke. You're okay. It'll pass." Fifteen minutes later, you could see me without a head....as it was in the toilot puking up everything from the hotdogs to my testicles. It.Wasn't.Cool. UGH, just thinking about it makes me want to puke again. And the fact that it came up in red chunks because the syrup went into the bread and it expanded. YIKES. Gotta stop talking about it.

I mean, a lot of people say you SHOULD puke after it starts hitting you to make you trip balls. I puked, and I didn't feel anything else except sick. I was shaking and my teeth were chattering so I just crawled into some bed and passed out while listening to Marley. It ruined my entire trip.

Another thing is, weed and DXM is very...very nice. Last night me and a friend smoked a few bowls while waiting for my DXM to kick in. I was stoned and it finally hit me. You just feel completely calm and happy, you might talk a lot (I did, ^_^). You feel completely in balance with the world, it's utterly beautiful.

Also, taking DXM is almost like clockwork for me. I'll take it, and almost exactly an hour and a half into it, it'll hit me. It lasts for 3-4 hours. If you guys want a VERY comfortable trip, do this. Take one four oz bottle, then about halfway through your trip (for me, a total of 3 hours after I take it) take another 4 oz bottle. I did this last night and I was F.U.B.A.R. It was just an amazing trip. The closed eye visuals were just....amazing. Can't describe it.