 <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]  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 Brimonidine Ophthalmic (Eye): Before using this medication, tell your doctor or pharmacist if you are allergic to it; or to apraclonidine; 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: blood vessel diseases (thromboangiitis obliterans), blood circulation disorders (cerebral or coronary insufficiency), depression, severe heart disease, kidney disease, liver disease, Raynaud's disease, low blood pressure upon standing (orthostatic hypotension). This drug may make you dizzy or drowsy or temporarily blur your vision. Do not drive, use machinery, or do anything that needs alertness or </s>