Honestly, barbiturates and opiates, together, make for a potentially very dangerous situation; just be really careful. I would say take two, if you want to be nice and relaxed. But, do not exceed six pills in a twenty-four hour period, under any circumstances - butalbital stays about in your system much longer than you might feel it, making re-dosing potentially quite dangerous. Two should do you quite nicely without tolerance to either opiates or barbiturates. I have fairly extensive experience with butalbital, but I have a good source, and I seem to like it much more than other users have reported. I think people tend to underestimate the power of barbiturates because they are quite uncommon relative to so many other pharmaceuticals in today's world, so treat them with ample respect. Each Fioricet w/ Codeine doesn't have a ton of codeine relative to what a lot of opiate users would use, but it has enough for someone without tolerance to feel opiate euphoria - even one pill could do it, but two would do it better. Incidentally, barbiturates are euphoriants by themselves, too, and one pill could be enough to give someone with no barbiturate tolerance a nice, relaxed little buzz, but, again, two would do it better. You don't need to do any CWE, taking only two pills, and not exceeding six in a twenty-four hour period. Make sure, though, you do not feel that two pills underwhelms you, because the difference between even two and three is greater than you might think with these drugs in this formulation, especially for someone with no tolerance. Barbiturates, alone, are VERY dangerous drugs, with narrow therapeutic indexes - basically, it doesn't take all that much more to kill you than it does to produce the desired effect, relative to most other drugs. Opiates are fairly dangerous in that way, too, usually when being taken with other CNS depressants, as you will be doing. So, please, please, have fun, but be careful.