"Common side effects of hydrocodone are nausea, vomiting, constipation, drowsiness, dizziness, lightheadedness, fuzzy thinking, anxiety, abnormally happy or sad mood, dry throat, difficulty urinating, rash, itching, and narrowing of the pupils. Serious side effects include slowed or irregular breathing and chest tightness"

Since it is a semi-synthetic opioid, I'd really suggest being careful. When I was in the car wreck, I was put on a semi-synthetic opioid, and it made me feel very ill. What kind of pain are you having?