Effects on Liver Enzymes

Hello,

I was very recently diagnosed with stage 2 breast cancer.  To date, I have completed my first of four chemo treatments.  I am on Taxotere, Dexamethasone, Cytoxin and Neulasta.  Prior to starting chemo, both my AST and ALT liver enzyme levels were above the normal range as determined by my GP.  After being diagnosed, I was referred to an oncologist and began my treatment.  Just prior to my second chemo, I went in for routine blood work and the oncologist was concerned about my enzyme levels.   As a precaution, they did some additional blood work to rule out hepatitis and they also did a liver CT scan both tests came back fine.  The oncologist advised that 13% of Taxotere patients respond this way to chemo but he is concerned that my liver enzyme levels aren't returning to normal range as quickly as he would have liked.  I did a bit of research online and found that Tylenol could potentially be a culprit and I did take quite a bit of tylenol from days 4-10 post my first chemo treatment to deal with the aches and pains.  As of now, my ALT level is 43 and normal range is 6-42 and my AST level is at 102 and the normal range is 4-43.  My oncologist has halted my chemo treatments and I have a liver ultrasound scheduled.  Has anyone had a similar experience?  Any insight you can provide would be appreciated!