text: <unk>  is an opioid antagonist that is FDA approved for the treatment of opioid-induced constipation (OIC) in adult patients with chronic non‑cancer pain and  with advanced illness who are receiving palliative care, when response to laxative therapy has not been sufficient.   Common adverse reactions include abdominal pain, nausea, diarrhea, hyperhidrosis, hot flush, tremor, chills,flatulence, and dizziness.
option_0: Methylnaltrexone bromide
option_1: Clebopride
option_2: Pantethine
option_3: Dropropizine
option_4: Demecarium bromide
option_5: Methoxyphedrine
option_6: Tritoqualine
option_7: Methaqualone