Delsym doesn't work?

[Qqaz8]

I took Delsym for the first time yesterday and thought I would make the trip interesting. I drank an entire 6 oz. bottle (I know, bad idea for your first time) of Delsym at around 6:00pm. At around 7 I started to feel mildly sedated, like I was walking through something a tad more viscus than air. 4 hours later that was the most I had felt the entire time (along with ravaging hunger, even more intense than the munchies) and the effects were starting to wear off. If anyone could tell me why I felt virtually nothing after hearing stories of people tripping balls on only 5 oz. I will provide additional details below if that will help.

Delsym bottle:
only active ingredient: dextromethorphan hbr
bottle size: 6 oz.
amount taken: 6 oz.

drug history:
Smoking weed every day for 2 years, 3-4 times weekly for 5 years (VERY low tolerence, one bowl and I'm out)
2 vicodin pills 4 years ago (also felt very little)
Ecstasy 1 year ago (helluva drug)
No alcohol history

Timeline:
6:00 pm: drank 6 oz. of Delsym
7:00: mild sedation, slightly more fun to walk, felt like i was walking through thick air
7:30: extreme hunger, ate an entire large pizza from pizza hut
8:00: upset stomach (what you would expect from taking a large amount of Delsym and eating an entire pizza)
9:00-11:00: refer to 7:00
11:00: High begins to fade, not as much fun to walk around
1:00: completely sober
1:30: not sober anymore, I smoked 2 bowls and passed out

EDIT: there is another active ingredient, guaifenesin, if that makes any difference

 

[treezy z]

that amount would get me high but it doesn't hit as hard as regular dxm syrup because it's extended release

 

[falsifiedhypothesi]

Since it's extended release it will take much longer to kick in, about 2 to 3 hours. Since you ate that pizza so soon after taking it I bet you killed the trip. Next time give it more time before you give in to the munchies.