 <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] such as timolol, metipranolol); or if you have any other allergies. This product may contain inactive ingredients (such as preservatives like benzalkonium 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: diabetes, low blood sugar levels (hypoglycemia), overactive thyroid (hyperthyroidism), muscle weakness disorders (such as myasthenia gravis), breathing problems (such as asthma, chronic obstructive pulmonary disease-COPD), heart problems (such as heart failure, slow heartbeat, second- or third-degree atrioventricular block), low blood flow to the brain (cerebrovascular insufficiency), poor blood flow to the hands/feet (Raynaud's phenomenon), severe allergies. If you develop an eye infection or injury, or have eye surgery, check with your doctor about whether you should continue to use your current bottle of betaxolol. You may be advised to start using a new bottle. Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products </s>