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Cautions
Before you have any medical tests, tell the person in charge that you are taking this medicine. Caffeine (present in some butalbital and acetaminophen combinations) interferes with the results of cert
ain tests that use dipyridamole (e.g., Persantine) to help show how well blood is flowing to your heart. Caffeine should not be taken for 8 to 12 hours before the test. The results of other tests may
also be affected by butalbital and acetaminophen combinations.
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Before Using This Medicine
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For butalbital and acetaminophen combinat
ions, the following should be considered:
Allergies¡XTell your doctor if you have ever had any unusual or allergic reaction to butalbital or other barbiturates, or to acetaminophen, aspirin,
r caffeine. Also tell your health care professional if you are allergic to any other substances, such as foods, preservatives, or dyes.
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What is this Drug
Acetaminophen is a pain reliever and fever reducer. Butalbital is in a class of drugs called barbiturates that slow down your central nervous system (brain and nerve impulses) causing relaxation. Caff
eine is believed to constrict dilated blood vessels that may contribute to tension headaches. Together, acetaminophen, butalbital, and caffeine are used to relieve complex tension (muscle contraction)
headaches although precisely how it works is unknown. Acetaminophen / butalbital / caffeine may also be used for purposes other than those listed in this medication guide.
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How to Use
Take acetaminophen / butalbital / caffeine - Fioricet exactly as directed by your doctor. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you. Take
each dose with a full glass of water. Take acetaminophen / butalbital / caffeine with food or milk if it upsets your stomach. Never take more acetaminophen / butalbital / caffeine than is prescribed f
or you. If your pain is not being adequately treated, talk to your doctor. Store acetaminophen / butalbital / caffeine at room temperature away from moisture and heat.
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Symptoms of overdose may include:
Seek emergency medical attention. Symptoms of an acetaminophen / butalbital / caffeine - Fioricet overdose include insomnia, restlessness, tremor, nausea, vomiting, diarrhea, abdominal pain, sweating,
seizures, drowsiness, decreased breathing,
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Possible food and drug interactions when taking this medication
Do not take acetaminophen / butalbital / caffeine -Fioricet if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), phenelzine (Nardil), or tranylcypromine (Parnate) in
the last 14 days. Dangerous side effects could result. Acetaminophen and butalbital may increase the effects of other drugs that cause drowsiness, including antidepressants, alcohol, antihistamines,
sedatives (used to treat insomnia), other pain relievers, anxiety medicines, and muscle relaxants. Tell your doctor about all medicines that you are taking, and do not take any medicine unless your do
ctor approves. Many other medicines contain acetaminophen, especially over-the-counter pain, fever, cold, and allergy medications. Too much acetaminophen can be very dangerous. Drugs other than those
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