My boyfriend had his throat stretched two weeks ago. His doctor prescribed prilosec once a day due to a food allergy irritating his esophagus. Tonight he fainted and when I revived him I was told that for the last several days he has not felt well. His symptoms have been dizziness, racing heart, chills, constipation, sweating, and just a general odd and strange feeling. Is there possibly something he can substitute prilosec for that will stop the food allergy from irritating his esophagus?