<s>[INST] I took 2 Omprezole without realizing the label said for heartburn 2 or more times a week.  I took the capsules at 12:30 a.m. as I ran out of Tums.  Immediately I felt a burning sensation in my esophagus that seems to be going away.  Now as I read more about it, I realize I am supposed to take only 1 capsule a day if experience heartburn 2 or more times a week.  What will happen if I took 2?  Do I need to eat in one hour? [/INST] omeprazole 20 mg can be take one time a day (OD) omeprazole 10 mg can be taken two times a day (BD) do not take more than prescribe dosage .taking too much of PPI can cause Vit B12 defi since you have not been taking it for long time , there will be no side effect as for now . </s>