I have noticed that whenever he indulges in opiates, no matter what form theyre in, he smokes alot more than usual. he has only recently had this come to his attention, but after thinking about it, has realized that this has always been the case. his cravings dont seem to get more intense, but rather, they arent fulfilled by smoking a cigarette. normally he can smoke, and be fine for a couple hours. on opiates, after a mere five minute refractory period, he notices the craving again. his preliminary theory, after looking up a couple articles, is that opiates down the line have action as NMDA agonists. swim knows that NMDA regulates, at least in part, the tolerance/addiction issue of opiates themselves. he thinks that they may trigger cravings for other substances, too, such as nicotine, but doesnt have an article to prove it. he also theorizes that an NMDA antagonist like dxm should block these cigarette cravings. he is going to try this little experiment himself sometime soon when he as access to the materials, but wants to get other peoples input too! swim knows that many people use a bit of DXM...say 30 mg, to potentiate opiate experiences. if You is a regular smoker, does You notice that cigarette cravings decrease when potentiation is used? for that matter, does anyone else notice that their cravings increase when they are on opiates, or is swim just a pharmacological anomaly? any feedback would be appreciated, and I will upload relevant articles as he finds them.