 [ Symptoms ] can i have small amounts of caffeine if i am taking omniprazole dr i have been diagnosed with gastritis a hiatal hernia and am wondering if i can have a small amount of caffeine a day or should quit all together i am currently on 40mgs of omeprozale dr [ Disease ] simple answer ask you doctor    someone who is familiar with your case and medical history while a small amount of caffeine may not be contradindicated in most patients i do not know anything about your case to make that call for you specifically