 <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] 800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: severe dizziness, severe drowsiness, seizures, slow/irregular heartbeat.  Notes Keep all medical and lab appointments.  Missed Dose Not applicable.  Storage Different brands of this medication have different storage needs. Check the product package for instructions on how to store your brand, or ask your pharmacist. Keep all medications away from children and pets. Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.The uses of Lactulose Oral: This drug is used by mouth or rectally to treat or prevent complications of liver disease (hepatic encephalopathy). It does not cure the problem, but may help to improve mental status. Lactulose is a colonic acidifier that works by decreasing the amount of ammonia in the blood. It is a man-made sugar solution. How to use lactulose oral If you are taking this medication by mouth for liver disease, take it as directed by your doctor, usually 3 to 4 times a day. </s>