
Feb 23, - Less serious side effects may include: anxiety, dizziness, drowsiness; mild nausea, vomiting, upset stomach, constipation; headache, mood changes; blurred vision; ringing in your ears; or. dry mouth. May 22, - or hydrocodone, can make you feel nauseous or have constipation, belly cramps, Nausea, vomiting, and diarrhea are among the most common side effects of the Your doctor can give you medicine to ease those effects. Hydrocodone is found in various brand name drugs like Hysingla ER and Zohydro ER, which are extended-release medications given for severe pain.