 <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]  Do not crush or chew the tablet. The dosage is based on your medical condition, age, and response to treatment. Your doctor may adjust your dose to find the dose that is best for you. Follow your doctor's instructions carefully. Use this medication regularly to get the most benefit from it. To help you remember, take it at the same time(s) each day. During treatment, your doctor may sometimes stop the medication for a short time to see if the medication is still needed. If you suddenly stop using this medication, you may have withdrawal symptoms (such as severe tiredness, sleep problems, agitation). To help prevent withdrawal, your doctor may lower your dose slowly. Withdrawal is more likely if you have used amphetamine for a long time or in high doses. Tell your doctor or pharmacist right away if you have withdrawal. When this medication is used for a long time, it may not work as well. Talk with your doctor if this medication stops working well. Though it helps many people, this medication may sometimes cause addiction. This risk may be higher if you have a substance use disorder (such as overuse of or addiction to drugs/alcohol). Take this medication exactly as prescribed to lower the risk of addiction. Ask your doctor or pharmacist </s>