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Side Effects of This Medicine
More common side effects may include:
- Abdominal pain, dizziness, drowsiness, intoxicated feeling, light-headedness, nausea, sedation, shortness of breath, vomiting
Less common or rare
side effects may include:
- Agitation, allergic reactions, constipation, depression, difficulty swallowing, dry mouth, earache, exaggerated feeling of well-being, excessive sweating, excessive u
rination, excitement, fainting, fatigue, fever, flatulence, headache, heartburn, heavy eyelids, high energy, hot spells, itching, leg pain, mental confusion, muscle fatigue, numbness, rapid heartbeat,
ringing in the ears, seizure, shaky feeling, skin redness and/or peeling, sluggishness, stuffy nose, tingling
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Why is this drug prescribed?
Some butalbital and acetaminophen combinations also contain caffeine (KAF-een) . Caffeine may help to relieve headaches. However, caffeine can also cause physical dependence when it is used for a long
time. This may lead to withdrawal (rebound) headaches when you stop taking it.
Butalbital and acetaminophen combination may also be used for other kinds of headaches or other kinds of pain a
s determined by your doctor.
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Overdose
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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Special warnings about this medication
This medicine may cause some people to become drowsy, dizzy, or lightheaded. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangero
us if you are dizzy or are not alert and clearheaded.
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Other medical problems
PregnancyˇX
- For butalbital: Barbiturates such as butalbital have been shown to increase the chance of birth defects in humans. Also, one study in humans has suggested that barbiturates tak
n during pregnancy may increase the chance of brain tumors in the baby.Butalbital may cause breathing problems in the newborn baby if taken just before or during delivery.
- For acetaminophen: Al
though studies on birth defects with acetaminophen have not been done in pregnant women, it has not been reported to cause birth defects or other problems.
- For caffeine: Use of large amounts of
caffeine during pregnancy may cause problems with the heart rhythm and the growth of the fetus.
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How to Use
People who get a lot of headaches may need to take a different medicine to help prevent headaches. It is important that you follow your doctor's directions about taking the other medicine, even if you
r headaches continue to occur. Headache-preventing medicines may take several weeks to start working. Even after they do start working, your headaches may not go away completely. However, your headach
es should occur less often, and they should be less severe and easier to relieve than before. This will reduce the amount of headache relievers that you need. If you do not notice any improvement afte
r several weeks of headache-preventing treatment, check with your doctor.
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