I hear there is a new medication called fioricet (acetaminophen butalbital and caffeine) which has codeine, can you tell me more about it?

An addicting med.: An addicting pain medicine for headaches. I would recommend you don't use it. I would do my best to understand the cause of your headaches. May just need new glasses, control your blood pressure, address the stress of life/job/responsibilities rather than complicate with an addicting medication. It would be my last resort, if ever at all. Go to a headache specialist, or interventional pain doc.