Final answer:
Methylnaltrexone is a medication used to treat opioid-induced constipation when other laxatives have failed. It is important to stay close to the bathroom after receiving an injection of methylnaltrexone.
Step-by-step explanation:
Methylnaltrexone is only used if Opioid laxatives have failed, and you should stay close to the bathroom after injection.
Methylnaltrexone is a medication used to treat opioid-induced constipation when other laxatives have not been effective. Opioids can cause constipation by slowing down the movement of the intestines. Methylnaltrexone helps to relieve constipation without affecting the pain-relieving properties of the opioids.
After receiving an injection of methylnaltrexone, it is important to stay close to a bathroom because it can cause bowel movements to occur within a short period of time.