Drug Facts
Composition & Profile
Identifiers & Packaging
HOW SUPPLIED Each butalbital and acetaminophen capsule contains butalbital 50 mg (Warning: May be habit-forming) and acetaminophen 300 mg. It is available in bottles of 100 capsules, NDC 75907-008-01. Capsules are opaque purple, imprinted “544” in white on the cap and the body. Store at 20°C to 25°C (68° to 77°F) [see USP Controlled Room Temperature]. Dispense in a tight container as defined in the USP. Rx Only Distributed by: Dr. Reddy’s Laboratories Inc. Princeton, NJ 08540 Code 1244A00 Rev. 07/2024; PACKAGE/LABEL PRINCIPAL DISPLAY PANEL
- HOW SUPPLIED Each butalbital and acetaminophen capsule contains butalbital 50 mg (Warning: May be habit-forming) and acetaminophen 300 mg. It is available in bottles of 100 capsules, NDC 75907-008-01. Capsules are opaque purple, imprinted “544” in white on the cap and the body. Store at 20°C to 25°C (68° to 77°F) [see USP Controlled Room Temperature]. Dispense in a tight container as defined in the USP. Rx Only Distributed by: Dr. Reddy’s Laboratories Inc. Princeton, NJ 08540 Code 1244A00 Rev. 07/2024
- PACKAGE/LABEL PRINCIPAL DISPLAY PANEL
Overview
Each capsule for oral administration contains butalbital USP, 50 mg and acetaminophen USP, 300 mg. In addition, each capsule also contains the following inactive ingredients: croscarmellose sodium, crospovidone, silicified microcrystalline cellulose, silicon dioxide, stearic acid, povidone, and pregelatanized starch. Capsule shells are composed of gelatin, titanium dioxide, FD&C Blue #1 and FD&C Red #3, with white edible ink. Butalbital (5-allyl-5-isobutylbarbituric acid), a slightly bitter, white, odorless, crystalline powder, is a short to intermediate-acting barbiturate. It has the following structural formula: C 11 H 16 N 2 O 3 MW 224.26 Acetaminophen (4'-hydroxyacetanilide), a slightly bitter, white, odorless, crystalline powder, is a non-opiate, non-salicylate analgesic and antipyretic. It has the following structural formula: C 8 H 9 NO 2 MW 151.16
Indications & Usage
Butalbital and acetaminophen capsules are indicated for the relief of the symptom complex of tension (or muscle contraction) headache. Evidence supporting the efficacy and safety of this combination product in the treatment of multiple recurrent headaches is unavailable. Caution in this regard is required because butalbital is habit-forming and potentially abusable.
Dosage & Administration
One to two capsules every four hours. Total daily dosage should not exceed six capsules. Extended and repeated use of these products is not recommended because of the potential for physical dependence.
Warnings & Precautions
WARNINGS Butalbital is habit-forming and potentially abusable. Consequently, the extended use of this product is not recommended. Hepatotoxicity Acetaminophen has been associated with cases of acute liver failure, at times resulting in liver transplant and death. Most of the cases of liver injury are associated with the use of acetaminophen at doses that exceed 4000 milligrams per day, and often involve more than one acetaminophen-containing product. The excessive intake of acetaminophen may be intentional to cause self-harm or unintentional as patients attempt to obtain more pain relief or unknowingly take other acetaminophen-containing products. The risk of acute liver failure is higher in individuals with underlying liver disease and in individuals who ingest alcohol while taking acetaminophen. Instruct patients to look for acetaminophen or APAP on package labels and not to use more than one product that contains acetaminophen. Instruct patients to seek medical attention immediately upon ingestion of more than 4000 milligrams of acetaminophen per day, even if they feel well. Serious Skin Reactions Rarely, acetaminophen may cause serious skin reactions such as acute generalized exanthematous pustulosis (AGEP), Stevens-Johnson Syndrome (SJS), and toxic epidermal necrolysis (TEN), which can be fatal. Patients should be informed about the signs of serious skin reactions, and use of the drug should be discontinued at the first appearance of skin rash or any other sign of hypersensitivity. Hypersensitivity/anaphylaxis There have been post-marketing reports of hypersensitivity and anaphylaxis associated with use of acetaminophen. Clinical signs included swelling of the face, mouth, and throat, respiratory distress, urticaria, rash, pruritus, and vomiting. There were infrequent reports of life-threatening anaphylaxis requiring emergency medical attention. Instruct patients to discontinue butalbital and acetaminophen capsules immediately and seek medical care if they experience these symptoms. Do not prescribe butalbital and acetaminophen capsules for patients with acetaminophen allergy.
Boxed Warning
HEPATOTOXICITY Acetaminophen has been associated with cases of acute liver failure, at times resulting in liver transplant and death. Most of the cases of liver injury are associated with the use of acetaminophen at doses that exceed 4000 milligrams per day, and often involve more than one acetaminophen containing product.
Contraindications
This product is contraindicated under the following conditions: Hypersensitivity or intolerance to any component of this product. Patients with porphyria.
Adverse Reactions
Frequently Observed The most frequently reported adverse reactions are drowsiness, lightheadedness, dizziness, sedation, shortness of breath, nausea, vomiting, abdominal pain, and intoxicated feeling. Infrequently Observed All adverse events tabulated below are classified as infrequent. Central Nervous : headache, shaky feeling, tingling, agitation, fainting, fatigue, heavy eyelids, high energy, hot spells, numbness, sluggishness, seizure. Mental confusion, excitement or depression can also occur due to intolerance, particularly in elderly or debilitated patients, or due to overdosage of butalbital. Autonomic Nervous : dry mouth, hyperhidrosis. Gastrointestinal : difficulty swallowing, heartburn, flatulence, constipation. Cardiovascular : tachycardia. Musculoskeletal : leg pain, muscle fatigue. Genitourinary : diuresis. Miscellaneous : pruritus, fever, earache, nasal congestion, tinnitus, euphoria, allergic reactions. Several cases of dermatological reactions, including toxic epidermal necrolysis and erythema multiforme, have been reported. The following adverse drug events may be borne in mind as potential effects of the components of this product. Potential effects of high dosage are listed in the OVERDOSAGE section. Acetaminophen : allergic reactions, rash, thrombocytopenia, agranulocytosis. To report SUSPECTED ADVERSE REACTIONS, contact Dr. Reddy’s Laboratories, Inc. at 1-888-375-3784 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch
Drug Interactions
The CNS effects of butalbital may be enhanced by monoamine oxidase (MAO) inhibitors. Butalbital and acetaminophen may enhance the effects of: other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression.
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