ok thanks. i read somewere not to take more than 20mg for my first time, casue it will likely cause rly bad nausea? the codeine made me naucious for about 20-30 minutes (right after i ate), i didn't puke, but got a pretty bad stomach pain. am i supposed to take opiates on an empty stomach, when im full, or like when i ate a few hours ago? and whats the deal on eating while ur on them, is that a no-no?