Drug Facts
Composition & Profile
Identifiers & Packaging
HOW SUPPLIED Baclofen tablets USP, 20 mg are available as a white to off white, round, flat-faced, beveled-edge uncoated tablets debossed with "344" on one side of score line and "U" on the other side of score line on one side of tablet and plain on other side, containing 20 mg baclofen, USP. NDC: 72162-2450-0: 1000 Tablets in a BOTTLE NDC: 72162-2450-1: 100 Tablets in a BOTTLE NDC: 72162-2450-2: 120 Tablets in a BOTTLE Store at 20º to 25ºC (68º to 77ºF) [see USP controlled Room Temperature] Repackaged/Relabeled by: Bryant Ranch Prepack, Inc. Burbank, CA 91504; Baclofen 20 mg Tablets Label
- HOW SUPPLIED Baclofen tablets USP, 20 mg are available as a white to off white, round, flat-faced, beveled-edge uncoated tablets debossed with "344" on one side of score line and "U" on the other side of score line on one side of tablet and plain on other side, containing 20 mg baclofen, USP. NDC: 72162-2450-0: 1000 Tablets in a BOTTLE NDC: 72162-2450-1: 100 Tablets in a BOTTLE NDC: 72162-2450-2: 120 Tablets in a BOTTLE Store at 20º to 25ºC (68º to 77ºF) [see USP controlled Room Temperature] Repackaged/Relabeled by: Bryant Ranch Prepack, Inc. Burbank, CA 91504
- Baclofen 20 mg Tablets Label
Overview
Baclofen USP, is a muscle relaxant and antispastic, available as 5-mg, 10-mg and 20-mg tablets for oral administration. Its chemical name is 4-amino-3-(4-chlorophenyl)- butanoic acid, and its structural formula is Baclofen USP is a white or creamy white powder, with a molecular weight of 213.66. It is slightly soluble in water, insoluble in organic solvents, dissolves in dilute mineral acids and alkali hydroxides. Inactive Ingredients. colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, povidone, and pregelatinized starch.
Indications & Usage
Baclofen tablets are useful for the alleviation of signs and symptoms of spasticity resulting from multiple sclerosis, particularly for the relief of flexor spasms and concomitant pain, clonus, and muscular rigidity. Patients should have reversible spasticity so that baclofen tablets treatment will aid in restoring residual function. Baclofen tablets may also be of some value in patients with spinal cord injuries and other spinal cord diseases. Baclofen tablets are not indicated in the treatment of skeletal muscle spasm resulting from rheumatic disorders. The efficacy of baclofen tablets in stroke, cerebral palsy, and Parkinson's disease has not been established and, therefore, it is not recommended for these conditions.
Dosage & Administration
The determination of optimal dosage requires individual titration. Start therapy at a low dosage and increase gradually until optimum effect is achieved (usually between 40-80 mg daily). The following dosage titration schedule is suggested: 5 mg t.i.d. for 3 days 10 mg t.i.d. for 3 days 15 mg t.i.d. for 3 days 20 mg t.i.d. for 3 days Thereafter additional increases may be necessary but the total daily dose should not exceed a maximum of 80 mg daily (20 mg q.i.d.). The lowest dose compatible with an optimal response is recommended. If benefits are not evident after a reasonable trial period, patients should be slowly withdrawn from the drug (see WARNINGS Abrupt Drug Withdrawal ).
Warnings & Precautions
WARNINGS a. Neonatal Withdrawal Symptoms: Withdrawal symptoms have been reported starting hours to days after delivery in neonates whose mothers were treated with oral baclofen throughout pregnancy. The symptoms of withdrawal in these infants have included increased muscle tone, tremor, jitteriness, and seizure. If the potential benefit justifies the potential risk to the fetus and oral baclofen is continued during pregnancy, gradually reduce the dose and discontinue baclofen before delivery. If slow withdrawal is not feasible, advise the parents or caregivers of the potential for neonatal withdrawal. b. Abrupt Drug Withdrawal: Hallucinations and seizures have occurred on abrupt withdrawal of baclofen. Therefore, except for serious adverse reactions, the dose should be reduced slowly when the drug is discontinued. c. Impaired Renal Function: Because baclofen is primarily excreted unchanged through the kidneys, it should be given with caution, and it may be necessary to reduce the dosage. d. Stroke: Baclofen has not significantly benefited patients with stroke. These patients have also shown poor tolerability to the drug. e. Pregnancy: Baclofen has been shown to increase the incidence of omphaloceles (ventral hernias) in fetuses of rats given approximately 13 times the maximum dose recommended for human use, at a dose which caused significant reductions in food intake and weight gain in dams. This abnormality was not seen in mice or rabbits. There was also an increased incidence of incomplete sternebral ossification in fetuses of rats given approximately 13 times the maximum recommended human dose, and an increased incidence of unossified phalangeal nuclei of forelimbs and hindlimbs in fetuses of rabbits given approximately 7 times the maximum recommended human dose. In mice, no teratogenic effects were observed, although reductions in mean fetal weight with consequent delays in skeletal ossification were present when dams were given 17 or 34 times the human daily dose. There are no studies in pregnant women. Baclofen should be used during pregnancy only if the benefit clearly justifies the potential risk to the fetus.
Contraindications
Hypersensitivity to baclofen.
Adverse Reactions
The most common is transient drowsiness (10%-63%). In one controlled study of 175 patients, transient drowsiness was observed in 63% of those receiving baclofen compared to 36% of those in the placebo group. Other common adverse reactions are dizziness (5%-15%), weakness (5%-15%) and fatigue (2%-4%). Others reported: Neuropsychiatric: Confusion (1%-11%), headache (4%-8%), insomnia (2%-7%); and, rarely, euphoria, excitement, depression, hallucinations, paresthesia, muscle pain, tinnitus, slurred speech, coordination disorder, tremor, rigidity, dystonia, ataxia, blurred vision, nystagmus, strabismus, miosis, mydriasis, diplopia, dysarthria, epileptic seizure. Cardiovascular: Hypotension (0%-9%). Rare instances of dyspnea, palpitation, chest pain, syncope. Gastrointestinal: Nausea (4%-12%), constipation (2%-6%); and, rarely, dry mouth, anorexia, taste disorder, abdominal pain, vomiting, diarrhea, and positive test for occult blood in stool. Genitourinary: Urinary frequency (2%-6%); and, rarely, enuresis, urinary retention, dysuria, impotence, inability to ejaculate, nocturia, hematuria. Other: Instances of rash, pruritus, ankle edema, excessive perspiration, weight gain, nasal congestion. Some of the CNS and genitourinary symptoms may be related to the underlying disease rather than to drug therapy. The following laboratory tests have been found to be abnormal in a few patients receiving baclofen: increased SGOT, elevated alkaline phosphatase, and elevation of blood sugar.
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