Nexium, whose generic name is esomeprazole magnesium enteric-coated tablets, and Daxi, whose generic name is magnesium aluminum carbonate chewable tablets, can both be used to treat duodenal ulcers. If you take these two medications incorrectly, or if you take them in the wrong way, the medications will not work to their fullest potential, and you may experience a lack of results after two weeks of taking them. If duodenal ulcer is caused by Helicobacter pylori infection, then take omeprazole and magnesium aluminum carbonate these two drugs can not eradicate Helicobacter pylori, may not relieve the discomfort manifestation, there will be the case of taking two weeks of effect is not obvious. Omeprazole should be swallowed whole, not chewed or crushed. Those who have difficulty swallowing should dissolve the medication in carbonate-free water, stirring until completely dissolved and then take it immediately or within thirty minutes. If taken incorrectly, it can also interfere with the medication’s ability to work, resulting in reduced efficacy. Omeprazole may cause headache, diarrhea, high blood pressure and other adverse reactions, allergic to the drug is prohibited; taking magnesium aluminum carbonate may cause adverse reactions such as constipation, dry mouth, allergic to the drug is prohibited, renal insufficiency should be used with caution, pregnant women should consult a doctor before use. Duodenal ulcer to eat these two drugs have no effect, may also be other reasons, should consult a doctor in a timely manner, under the guidance of the doctor to take reasonable medication.