Breath Test for H. pylori You must not have any antibiotics or Pepto Bismol for one month before the day of the test. You must not have had the following medications (or any of their generic equivalents) for at least 2 weeks before the day of the test: * Prilosec * Prevacid * Carafate * Protonix * Aciphexbreathtest * Nexium You must be fasting for 6 hours prior to the test. This means nothing to eat or drink. If you have any questions, please call our office. BackPreparations_for_Procedures.htmlBreath_Test_Preparation_files/breathtest.shapeimage_2_link_0