 <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]  call 911. If the person is awake and has no symptoms, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: ringing in the ears, fever, slow/shallow breathing, severe drowsiness, slow heartbeat, severe dizziness, pinpoint pupils, cold/clammy skin, limp/weak muscles, coma.  Notes Do not share this medication with others. Sharing it is against the law. If you are using this medication regularly or at high doses, lab and/or medical tests (such as kidney/liver function, blood count) may be done while you are taking this medication. Keep all medical and lab appointments. Consult your doctor for more details. This medication has been prescribed for your current condition only. Do not use it later for another condition unless your doctor directs you to do so. A different medication may be necessary in that case.  Missed Dose If you take this medication regularly and you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Take your next dose at the regular time. </s>