What side effects exist from taking hydrocodone pills?

Those of any opioid: The main complication of using opioids is constipation, which can be reduced by using stool softeners (colace, surfak) while taking them. Decreased bladder contraction with urinary retention can occur, as well as increased sweating, swelling in the extremities (edema). In higher doses, respiratory depression, coma and death. The Tylenol, (acetaminophen) in excessive doses, can cause liver damage.