Eating before tripping?

2 days ago i took 12 dramamine for the first time,and i didnt eat anything that day, it was hella intense and different from anything ive done before, better than taking 16 triple C's. yesterday night me and my friend ate a sandwich and some other food then about 3 hours after that we both popped 12 dramamine and i really didnt feel anything from it (no hallucinations or weird talking lol) is it because we ate? or some other reason? we are going to wait until this coming up weekend to try it again, any tips?