Slowed Gut Motion. Paralytic ileus is often a sort of ileus where your intestines are not able to go food stuff by means of them. Methadone will make this affliction even worse.​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​�