Tabitha,
I have taken Rabeprazole which is a similar drug (proton-pump inhibitor) for several years, I learnt a long time ago not to miss any because like you have mentioned miss one dose and it comes straight back
Miss more than one dose and take it from me you can end up with very nasty pain :-( On the bright side, if you don't miss any you should be symptom free, at least I am with Rabeprazole so if you don't see any quick response I would highly reccomend Rabepazole.
(((((((((((((((((((((((((((((((Acid fighting hugs))))))))))))))))))))))))))))))))))))
Take care.
Dave