Oh no! Sorry I'm just now getting around to coming on to Bonesmart and reading this. 600? Oh my goodness! My Rheumie freaked on me last year when mine was 65. Ok now, listen to me. When mine spiked I did some research and this really worked for me so please try it. Go to GNC. They have a supplement there called Preventative Nutrition Liver Health Formula. Get some of that. Also, get some Milk Thistle supplements. That combo brought my numbers both back well into the healthy levels within a month. If you don't have a GNC nearby go to any pharmacy, Walmart, Target, Meijer, whatever you have there and at least get the Milk Thistle. Once I got my numbers back down I started taking only the Milk Thistle and my numbers have stayed down (although I haven't been tested now since July) in the normal range. By stopping the narcotics, Tylenol and all NSAID's and taking these supplements you should get pretty quick improvement. Please try this! My prayers are with you for this to resolve soon. Are you having any symptoms of a liver in distress? Yellowish skin or whites of eyes? Yellowish poo? You know, labs do make mistakes on occasion. I'm praying for you that they have made a mistake.