While diarrhea is a side effect of Viibryd, I don't believe the ingredients you listed are added with the specific intent of causing diarrhea in patients. Rather polyethylene glyco is used as an "excipient" - a filler mixed with the active ingredient designed to assist with drug absorption and enhance solubility. You may find that overtime the diarrhea side effect lessens (I have). Too, be sure to take Viibryd with food in order to increase blood concentration levels (effective dosage).
The amount of polyethylene glycol in Viibryd... as well as any other medication, of which there are many, that contain it... is not nearly sufficient to cause diarrhea.
Rather, diarrhea is a common side effect in antidepressants... even those that do not contain any.
Very common (10% or more): Diarrhea (up to 29%), nausea (up to 24%)"
As Rathmullan says, side effects generally resolve within just a few days to a week or so. Be sure to stay hydrated and consult with your doctor for a recommendation for a OTC remedy that will control it for you.
- Viibryd Information for Consumers
- Viibryd Information for Healthcare Professionals (includes dosage details)
- Side Effects of Viibryd (detailed)
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