constipation, drug induced
"I started taking movantik about 3 to 4 months ago. At first it seemed to work great. Then as weeks went by I noticed that it did not seem to work as well or at all. I started taking the drug in the morning and then late at night and usually the second dose would work. Then I noticed something strange where I would feel really sick especially during the daytime. And I finally figured it out and realized it is the movantik causing withdrawal symptoms. Not like complete withdrawal because I am on Fentanyl patches. But enough of a withdrawal feeling where I can not function at work. My recommendation is to not take this drug more than twice a week because it loses its potency. And only take this drug at night so you don't have withdrawal symptoms"