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Fioricet

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Fioricet

Fioricet®
(butalbital, acetaminophen, and caffeine) Tablet

DRUG DESCRIPTION

Fioricet® (Butalbital, Acetaminophen, and Caffeine Tablets USP) is supplied in tablet form for oral administration.

Each tablet contains the following active ingredients:
butalbital USP . . . . . . . . . . . .50 mg
acetaminophen USP . . . . . . 325 mg
caffeine USP . . . . . . . . . . . . .40 mg

Inactive Ingredients: crospovidone, FD&C Blue #1, magnesium stearate, microcrystalline cellulose, povidone, pregelatinized starch, and stearic acid.

Butalbital (5-allyl-5-isobutylbarbituric acid), is a short to intermediate-acting barbiturate. It has the following structural formula:

Butalbital structural formula illustration

C11H16N2O3          Mol. wt. 224.26

Acetaminophen (4´-hydroxyacetanilide), is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula:

Acetaminophen structural formula illustration

C8H9NO2              Mol. wt. 151.17

Caffeine (1,3,7-trimethylxanthine), is a central nervous system stimulant. It has the following structural formula:

Caffeine structural formula illustration

C8H10N4O2          Mol. wt. 194.19

What are the possible side effects of acetaminophen, butalbital, and caffeine?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using this medication and call your doctor at once if you have any of these serious side effects:

  • fast, pounding, or uneven heartbeat;
  • feeling light-headed or short of breath;
  • nausea, upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes); or
  • easy bruising or bleeding, unusual weakness, fever,...

Read All Potential Side Effects and See Pictures of Fioricet »

What are the precautions when taking butalbital, acetaminophen and caffeine (Fioricet)?

See also Warning section.

Before taking this medication, tell your doctor or pharmacist if you are allergic to acetaminophen, caffeine, or butalbital; or to other barbiturates (such as phenobarbital) or xanthine derivatives (such as theophylline); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: severe breathing problems (such as bronchopneumonia), a certain enzyme disorder (porphyria), liver disease, kidney disease, personal or family history of regular use/abuse of drugs/alcohol, mental/mood disorders, abdominal/stomach problems (such as stomach...

Read All Potential Precautions of Fioricet »

Last reviewed on RxList: 8/8/2011
This monograph has been modified to include the generic and brand name in many instances.

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Fioricet - User Reviews

Fioricet User Reviews

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Here is a collection of user reviews for the medication Fioricet sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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