Drug class: opioid antagonists
Use: hospice care in pts with advanced illness having constipation due to use of opioids

Wonder me's mnemonics: Methylnaltrexone the meth-is-now-t-rex-owns. Meth = opioids t-rex-own = opioid antagonist => constipation relieved.  T-rex => very old character => hospice advanced illness

Wonder me's mnemonics for SQ only: Methylnaltrexone the meth is now-T-rex-owns. T-rex can easily lift the meth dealer just by lifting his shirt (subQ)