How to reduce the chances of throwing up? I started taking dxm a few weeks ago , Yesterday I took two bottles containing  240mg of dxm (480mg)

It started out okay the first 30 minutes ,now I've never puked before but at the 45min marked I puked my guts out haha , I did not expect this because it happened almost immediately ,I wanted to get to the third plateau but I didn't though the high was decent 2nd plat . Now every time I think about taking it again I get this urge to throw up it's not overwhelming but it bothers me.

Did the fact that I thew up somehow reduce the dxm high ?