 <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] . Lab and/or medical tests (such as ethosuximide blood levels, complete blood count, kidney/liver function) should be done while you are taking this medication. Keep all medical and lab appointments. Consult your doctor for more details.  Missed Dose It is important to take each dose at the scheduled time. If 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. Do not double the dose to catch up.  Storage Store at room temperature away from light and moisture. Do not freeze the liquid form of this medication. Do not store in the bathroom. 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 Fentora Buccal: This medication is used to help relieve sudden (breakthrough) cancer pain in people who are regularly taking moderate to large amounts of opioid pain medication. Fentanyl belongs to a class of drugs known as opioid analgesics. It works in the brain to </s>