Hi ! I have gone through your question and i understand your concern .
I would say that your
liver enzyme level ALT and AST are high .These means that your liver cells are damaged , something is damage your liver .
Amastrazole is an aromataze inhibitor drug that had good effect to low
estradiol level .
Is the first choice we have to low estradiol level in your age .
And yes this drug may cause your liver enzymes increase even in this dosage.The thing I would recommend to do is to monitor your liver test every 3 month .Only your treating doctor has the right to do any changes , cause your primary dissease is very important to be under controll beside the side effect of this medication.
He aware of these side effect :
chest pain ( this drug increase level of
cholesterol ), slow or fast heart beat ,
dizziness , headache ,, swelling of the feet or lower legs any
bone injury ( cause of low estradiol level)
shortness of breath. Call the hospital if you have one of these.
Wish you good health !
If you have my other questions please feel free to ask me .