<unk>  is a drug with antimuscarinic and weak mu opioid agonist effects.  The maleic acid salt of<unk>  is marketed under the trademark of Debridat, Recutin, Polybutin, or Modulon for treatment of irritable bowel syndrome and other gastrointestinal disorders.  The major product from drug metabolism of<unk>  in human beings is nortrimebutine, which comes from removal of one of the methyl groups attached to nitrogen.<unk>  exerts its effects in part due to causing a premature activation of phase III of the migrating motor complex in the digestive tract. Both<unk>  and its metabolite are commercially available.
Trimebutine
Arbutamine
Oxybutynin 
Ceftibuten
Tolbutamide
Talbutal
Arbutin
Eluxadoline