 <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]  serious symptoms such as passing out or trouble breathing, call 911. Otherwise, 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: very slow heartbeat, severe dizziness, fainting, mental/mood changes (such as restlessness), seizure.  Notes Do not share this medication with others. Have your child's blood pressure and pulse (heart rate) checked regularly while taking this medication, especially when this medication is first started or after a dose increase. If directed by the doctor, learn how to monitor your child's blood pressure and pulse at home, and share the results with the doctor.  Missed Dose If you miss a dose, give it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Give the next dose at the regular time. Do not double the dose to catch up.  Storage Store at room temperature. Do not freeze. Do not store in the bathroom. Keep all medications away from children and pets. Discard the medication 2 months after the bottle is opened. Do not flush medications down the toilet or pour them into </s>