 <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]  your dose again. Consult your doctor for more details. Keep taking this medication even if you feel well. Most people with high blood pressure do not feel sick. You should see a benefit from this drug within 1 to 2 weeks. Tell your doctor if your condition does not improve or if it worsens (for example, your blood pressure readings remain high or increase, or your BPH symptoms worsen).The side effects of Doxazosin Oral: Dizziness, lightheadedness, drowsiness, unusual tiredness, or weight gain may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position. Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor right away if you have any serious side effects, including: sore throat that doesn't go away, fainting, shortness of breath, weakness, swelling of hands/feet, yellowing eyes/skin, dark urine, easy bleeding/bruising, fever. Get medical help right </s>