 <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] , contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.The precautions of Bismuth Subcit K-Metronidazole-Tetracycline Oral: See also Side Effects section. Before taking this product, tell your doctor or pharmacist if you are allergic to bismuth subcitrate, metronidazole, or tetracycline; or to tinidazole; or to other tetracyclines (such as doxycycline); or to other bismuth products (such as bismuth subsalicylate); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease, liver disease, blood disorders, brain/spinal cord disorders </s>