Thank you both.   Should she get something in addition to the codeine though?  That's my concern.  Originally Maddie's oncologist put her on the three meds she is currently taking.  After seeing the surgeon, he increased the gabapentin and took her off the tramadol completely.  Within 24 hours her pain had noticeably increased.  When I called him and told him this, he increased the gabapentin to 600 mg a day which did not seem to do anything but knock her out.  When I called again, her surgeon was not in so the other surgeon put her back on tramadol and reduced the gabapentin back to 400 mg and she's much better.  I guess this is why I'm concerned about the choice of codeine because the last change in pain meds seemed to make her worse.  The surgeon did say that tramadol has been shown not to work well in dogs - but it does seem to work for Maddie. 

Thanks - yes she is better on it for the pre-surgery leg pain.  I am worried about post amputation.  When I asked the nurse what meds she would come home with and she said "Codeine" I got worried that it wouldn't be enough.  I will talk to him again when she goes in for the procedure on Tuesday and make sure I tell him I'm worried about her post operative pain.  I really like this vet specialty center and they have always been great whenever any of my dogs have been treated there - I guess I'm probably just over reacting.  I hate seeing her in pain