What is Morphine IR (morphine)?
Morphine is in a group of drugs called narcotic pain relievers. Morphine is used to treat moderate to severe pain. Short-acting morphine is taken as needed for pain. Extended-release morphine is for use when around-the-clock pain relief is needed. Morphine is not for treating pain just after surgery unless you were already taking morphine before the surgery. Morphine may also be used for purposes other than those listed in this medication guide.