 <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]  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 Butorphanol Nasal: Before using butorphanol, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients (such as benzethonium chloride), 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: abdominal problems (such as gallbladder disease, pancreatitis), adrenal gland problems (such as Addison's disease), brain disorders (such as seizures, head injury, tumor, increased intracranial pressure), heart problems (such as irregular heartbeat, chest pain, recent heart attack), high blood pressure, kidney disease, liver disease, breathing problems (such as asthma, chronic obstructive pulmonary disease-COPD, sleep apnea), mental/mood disorders (such as toxic psychosis), a certain spinal problem (kyphoscoliosis), stomach/intestinal problems (such as diarrhea due to infection, paralytic ileus), personal or family history of a substance use disorder ( </s>