gerd
"Stopped Nexium and Dr prescribed 150 mg generic Zantac (Ranitidine) twice daily.  About 14 hours from the first dose the GERD was back in full force.  At 3AM I resorted to 20 mg of Nexium and another 20 mg an hour later.  Worst night in many years.  Not sure if it takes time for this medicine to build up in my system but I can't suffer from GERD and it did not work the first day."