Do not take more Fioricet than is recommended. An overdose of acetaminophen can damage your liver or cause death. Call your doctor at once if you have nausea, pain in your upper stomach, itching, loss of appetite, dark urine, clay-colored stools, or jaundice (yellowing of your skin or eyes).
In rare cases, acetaminophen may cause a severe skin reaction. Stop taking this medicine and call your doctor right away if you have skin redness or a rash that spreads and causes blistering and peeling.
You should not use Fioricet if you have porphyria, or if you have recently used alcohol, sedatives, tranquilizers, or other narcotic medications.
Do not use Fioricet if you have taken an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include isocarboxazid, linezolid, phenelzine, rasagiline, selegiline, and tranylcypromine.
- Do not overuse Fioricet because you may become addicted to it and have difficulty stopping it.
- Over-use of Fioricet can also result in a medication-overuse headache (also known as a rebound headache) which occurs when analgesics are taken too frequently to relieve a headache.
- Never share your Fioricet with anybody else.
- May be administered without regards to food; although food may decrease any reported stomach upset.
- If you have been taking Fioricet regularly, or if you think you have become addicted to it, talk to your doctor about slowly withdrawing it, as sudden withdrawal may precipitate a withdrawal syndrome (symptoms include anxiety, dizziness, hallucinations, muscle twitching, nausea, seizures, sleeplessness, or tremor).
- Fioricet can cause sedation and affect your ability to drive or operate machinery.
- Do not drink more than two alcoholic drinks a day if you are a man or one alcoholic drink per day if you are women and taking Fioricet.
- Talk to your doctor if you have any side effects of concern. Seek urgent medical advice if you develop an allergic-type reaction (difficulty breathing or swallowing, rash, or facial swelling) soon after taking Fioricet.
- Not recommended for women who are pregnant or breastfeeding.
- Fioricet contains acetaminophen which may be “hidden” in other cough/cold medicines. The total dose of acetaminophen from any source should not exceed 4000mg per day (24 hours).
- Talk to your doctor or pharmacist before taking any other medications or natural products with Fioricet as it can interact with a large number of drugs.