RELISTOR(R) (methylnaltrexone bromide) is an opioid antagonist. RELISTOR tablets and RELISTOR injection are indicated for the treatment of opioid-induced constipation (OIC) in adults with chronic ...
Pharmacology: The use of opioid analgesics can lead to constipation due to their effect on intestinal smooth muscle and their interference with the bowel’s normal elimination function.