Omeprazole and cold medicine can be taken together, first of all, the mechanism of action of omeprazole and cold medicine is different, omeprazole is an acid suppressant PPI preparation, mainly to reduce the secretion of gastric acid, relieve epigastric pain, acid reflux, heartburn caused by increased gastric acid, used to cure chronic gastritis, peptic ulcer, and gastritis with erosion and other such symptoms. Cold medicine is often used to deal with coughing, sneezing, headache and other cold symptoms, and their two mechanisms of action are not the same, so they can be taken together. Secondly, the metabolic pathways of these two drugs are not the same, and they do not produce too many antagonistic mechanisms between each other, or the side effects of interaction, so omeprazole and cold medicine can be taken together, and it is recommended to drink more water when taking the medicine to accelerate the metabolism of the drug is enough.