Okay if you have some type of reflux you can treat it in ways that are not related to drugs. You can change the position in which you sleep, on your back or either side and improve further on that by purchasing and using a reflux wedge or pillow. These wedges come in different sizes, thickness and angles of degrees. Pick what works for you they are designed to elevate the head.
You can learn about the various types and how they work here.