 <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] . You may report side effects to Health Canada at 1-866-234-2345.The precautions of Vicks Sinex Ultra Fine Mist 12-Hour Nasal: Before using this nasal decongestant, tell your doctor or pharmacist if you are allergic to it; or to other sympathomimetics (such as pseudoephedrine); 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. If you have any of the following health problems, consult your doctor or pharmacist before using this product: heart/blood vessel disease, overactive thyroid (hyperthyroidism), diabetes, high blood pressure, difficulty urinating (due to enlarged prostate). Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). Children may be more sensitive to the side effects of this drug. Check the product package or consult with your doctor or pharmacist about whether this nasal spray can be used by children. During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. It is unknown if this drug passes into breast milk. </s>