wrecks in the past. I was prescribed darvocet since 2001 which worked great but since it was taken off the market,I have tried one naproxen (500 mg) in the a.m., two tramadol mid-day (50 mg) and if needed, I take Hydrocodone Bitartrate and Ibuprofen as I was told it would not affect my liver as much. Now I have sharp pains in my abdomen and severe gas, mood swings, lethargic and now elevated liver enzymes. Can anyone share any experience here?