Should i take dxm (Dextromethorphan) at an amusement park?!

Honestly, I thought it would be amazing to, but DXM in any form (liquid, powder, or gelcap) will cause nausea during the first probably hour to two. So if you want to take around 450mg, then I'd try the very smaller rides first and save the roller coasters until the 150-minute mark.

If you have access to powder though, that will reduce the nausea a bit. The liquid is terrible when it comes to nausea, and will gelcaps you can never be too sure.

Only if you wanna barf on the rides.

It might make you sleepy, it does that to me. Plus the security might think you are high. lol