My doctor has changed my meds to zantac (ranitidine). and it's not getting rid of terrible burning in my chest can i take something like tums as well?

GERD meds: What med were u on before? Did it relieve your symptoms better than zantac (ranitidine)? Can use otc antacids temporarily, but should see doc again & report lack of relief with new med. Might try doubling the dose (after discussing w/ doc or ask for a proton pump inhibitor like Prilosec or prevacid. Avoid food triggers, too, until condition much improved; then add them gradually.