Nausea, vomiting, abdominal pain, shaking (tremor), shortness of breath, increased urination, lightheadedness, dizziness, drowsiness, or trouble sleeping may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
To reduce your risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.
Stop using Fioricet and call your doctor at once if you have:
- confusion, seizure (convulsions);
- shortness of breath;
- a light-headed feeling, like you might pass out; or
- nausea, upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).