i am 37 yr. old. from last 5-6 month burning pain in my stomach & also suffering from full of acidity. Shown to gastroenterologist & checked B12, CBC, CRP level, Stool test. All test are normal but there is no relief to me. they have given antacid tablets(Razo D, Pentocid, Kinpride, IBSCIM) . there is no acidity while taking antacid tablets but when it is stopped it is again started. what is the reason of acidity/ how many days medicines take to cure it/ what are the side effects of this medicine when taken for a long time?