Tough,

When it comes to taking prescription drugs, the side effects are often worse than the disease!  Ever pay close attention to the commercials?!  :)  The cause of acid reflux is just that!  Too much acid toxicity in the body.  Our bodies have become acid waste dumps due to the condition of the planet at this time.  We are on overload and the body has to store the acid in various places in the body until we get rid of it.  A common place is in the muscles and joints, and in fat cells.  It is our bodies natural way of protecting us from ourselves.   So it looks like arthritis, fibromyalgia, obesity, and it causes acid reflux!  Do yourself a big favor and look into an a water filter that also ionizes and alkalizes your tap water along with filtering.  Pricey but worth the investment.  And it feels great to actually heal yourself from the inside out by nothing more than drinking pure alkalized water.   Good luck