 <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]  the brain to give you pain relief. How to use Levorphanol Tartrate Read the Medication Guide provided by your pharmacist before you start taking levorphanol and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Take this medication by mouth with or without food as directed by your doctor, usually every 6 to 8 hours as needed. If you have nausea, you may take this drug with food, although this may cause your body to absorb less of the drug and get less benefit from it. Ask your doctor or pharmacist about other ways to decrease nausea (such as lying down for 1-2 hours with as little head movement as possible). The dosage is based on your medical condition, age, and response to treatment. Pain medications work best if they are used as the first signs of pain occur. If you wait until the pain has worsened, the medication may not work as well. Before you start using this medication, ask your doctor or pharmacist if you should stop or change how you use your other opioid medication(s). Other pain relievers (such as acetaminophen, ibuprofen) may also be prescribed. Ask your doctor or pharmacist about using levorphanol safely with other drugs. Suddenly </s>