Question: is headache a side effect of oxybutynin?
Answer: SIDE EFFECTS: Dry mouth, dizziness, drowsiness, blurred vision, dry eyes, nausea, vomiting, upset stomach, stomach pain, constipation, diarrhea, headache, unusual taste in mouth, dry/flushed skin, and weakness may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.