 <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] : See also Warning section. Nausea, vomiting, upset stomach, constipation, dizziness, drowsiness, headache, increased sweating, dry mouth, lightheadedness, or weakness may occur. Some of these side effects may decrease after you have been using this medication for a while. 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. To prevent constipation, eat dietary fiber, drink enough water, and exercise. You may also need to take a laxative. Ask your pharmacist which type of laxative is right for you. 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: nausea that doesn't stop, interrupted breathing during sleep (sleep apnea), slow/fast/irregular heartbeat, mental/mood changes (such as depression, hallucinations, confusion), difficult/painful urination, ringing in the ears, decreased hearing, vision changes, easy bruising/bleeding, </s>