 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  by blocking acid production in the stomach. Decreasing excess stomach acid can help ulcers heal. Amoxicillin and clarithromycin are antibiotics used to treat a wide variety of bacterial infections (including H. pylori). Treating the infection helps reduce the risk of ulcers returning. Amoxicillin is a penicillin-type antibiotic and clarithromycin is a macrolide-type antibiotic. They work by stopping the growth of bacteria.The antibiotics in this product treat only bacterial infections. Antibiotics do not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections. How to use Omeclamox-Pak Each packet contains both the morning and evening doses of this medication (a 1-day supply). Consult your doctor or pharmacist for instructions on the proper use of this product. Take this medication by mouth as directed by your doctor, usually 1 dose (4 pills) before a meal, twice daily. Swallow the omeprazole capsules whole. Do not crush or chew. If you have trouble swallowing the omeprazole capsule, you may open the capsule if it is not sealed and carefully sprinkle its contents on a spoonful of </s>