If you read anything prior to making this decision, you would know dramamine and the like are very different from DXM. Have you tripped on dramamine before? Making the decision to take dramamine for fun is a sure sign you shouldn't be using recreational drugs. You sound very naive and irresponsible, almost getting yourself and your friend killed by 25i. It's clear that you're a teenager too, and are just taking things willy nilly. Please for Christ's sake, slow down, or preferably, stop your drug use. You've been picking all the worst possible psychedelics that one could pick.
That said, for harm reduction's sake, a 4oz bottle of an ONLY DXM product would be a medium, easy to handle trip for someone with experience in other things. Just don't go chugging bottle after bottle because you now think it'll be too weak.
If I were you, I'd stop using drugs before I died and put my friends and family through such a thing. It's clear you're an extremely irresponsible person. In your 25i trip wreck, you stated that your parents had put you in rehab before. That's a bad freakin sign dude. And whoever sold you the 25i has no soul and likes to watch children almost die apparently.
/rant
