I Have A Script For Metoclopramide (10mg) That My Gastroenterologist

I have a script for Metoclopramide (10mg) that my Gastroenterologist prescribed prior to starting on Dexilant. I have Barrett's Esophagus as well as an Hiatal Hernia. Should I be taking both? I don't have a problem with constipation. As a matter of fact I've been experiencing very loose bowels recently which I believe are related to my PCP prescribing iron to treat my anemia (I stopped taking the iron yesterday just to see what happens). I'm not sure what the Reglan treats vs. the Dexilant. Hoping you can give me some direction. Thanks.