I have been pescribed pentacid -l , i long been apateint of GERD AND recently vomiting in night started.i am nonsmoker, non alchohlic , and vegetarian . I dont take tea , but one cup coffee daily. The problem of GERD and vomiting become more aggrassive during winter. How long , i have to take PENTACID-L and what are its side effects. My age is 51. I have no other disease. All pathological tests are normal except endoscopy showing esophagus sligtly not prpper. Pls help me.