<unk>  is an opioid antagonist that is FDA approved for the {{{indicationType}}} of postoperative ileus following upper and lower gastrointestinal surgeries that include partial bowel resection with primary anastomosis. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include dyspepsia.
Alvimopan
Fenoldopam
Tofisopam
Tiopronin
Iotrolan
Avacopan
Bevantolol
Bietaserpine