 <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] , away from light and moisture. Some brands must be refrigerated, and others may be stored at room temperature. Ask your pharmacist for more details about the brand you are using and when it should be discarded. 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 Relistor Subcutaneous: This medication is used to treat constipation caused by opioid medication. It blocks the effect of opioids on the gut without blocking the effect on pain. Methylnaltrexone belongs to a class of medications known as opioid antagonists. How to use Relistor Syringe Read the Medication Guide and, if available, the Patient Information Leaflet provided by your pharmacist before you start using methylnaltrexone and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Inject this medication under the skin in the upper arm, abdomen, or thigh. Your doctor might direct you to use this medication once a day on a set schedule, or direct you to use it every </s>