So I have been wanting to try lean (prometh with codeine) and I couldnt find it for the life of me. I did however find a bottle of generic tussionex er ( although expired LOL). Im curious would this give the same feeling prometh w/ codeine? How much would an optimal dose to put in a soft drink? I am also 100% opiate naive, like I have 0 tolerance to them only have taken an opiate once in my life years ago, so I dont want to end up taking to much and feeling sick. Looking to just sip and smoke a blunt with