constipation, drug induced
"Movantik worked like a charm for me - when used correctly, meaning no sooner than 2 hours after your last meal or 1 hour before your FIRST meal of the day.   I suffer from pain due to nerve damage in lower back (S1 nerve root) after multiple surgeries and take oxy and percocet daily.



When I did not follow that very simple schedule (by accident), ie, took it too close to my last meal, I had horrible bloating, pain, cramping and terrible diarreah.  



So I would GUESS that many of the negative reviews on here MAY be b/c of misuse."