 <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]  pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.The uses of Helidac Oral: This product contains 3 medications: tetracycline, metronidazole, and bismuth subsalicylate. It is used with an acid blocker (for example, an H2 blocker such as ranitidine) to treat stomach/intestinal ulcers caused by the bacteria H. pylori and to prevent the ulcers from returning.Tetracycline and metronidazole are antibiotics used to treat a wide variety of bacterial infections. They work by stopping the growth of bacteria. Bismuth subsalicylate is often used to treat upset stomach, but it is used in this combination to help stop the growth of bacteria.This product treats only bacterial infections. It will 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.This product is not recommended for use in children. How to use Helidac 250 Mg-500 Mg-262.4 Mg Oral Pack Bismuth Sal </s>