SN instructed on Morphine. This is used to treat moderate to severe pain. Short - acting formulations are taken as needed for pain. You should not take morphine if you have severe asthma or breathing problems, a blockage in your stomach or intestines, or a bowel obstruction called paralytic ileus. Morphine can slow or stop your breathing. Never use this medicine in larger amounts, or for longer than prescribed. Do not crush, break, or open an extended - release pill. Swallow it whole to avoid exposure to a potentially fatal dose. Morphine may be habit - forming, even at regular doses. Never share this medicine with another person, especially someone with a history of drug abuse or addiction. Keep the medication in a place where others cannot get to it. Take morphine exactly as prescribed by your doctor. Follow all directions on your prescription label.