Medicine Overview Of Faast 40 Mg CapsuleUses of FaastFaast uses include the management of esophageal reflux disease (reflux of stomach contents back into the esophagus is seen), and stomach and duodenal (small intestine) ulcers.Side effects of FaastPatients using omeprazole may at times experience nausea and headache. If you experience any of these symptoms for a long period of time, consult your doctor immediately.How to take FaastThis medicine should not be taken with foodWarningsPregnancyPlease consult your doctor before using omeprazole.Breast FeedingFaast should not be used by breastfeeding mothers.