I developed acid and/or bile reflux two months after gall bladder surgery. The Dr. put me on 40mg of Nexium for two weeks and I got about 70-80% relief of my symptoms. I still felt some burning in my throat and a lot of burping. The Dr increased the Nexium dosage to 80mg daily. I am concerned about side effects especially possible damage to my liver since I also take 40 mg of Lipitor daily.