Land: USA
Sprog: engelsk
Kilde: NLM (National Library of Medicine)
Baclofen (UNII: H789N3FKE8) (Baclofen - UNII:H789N3FKE8)
McKesson Contract Packaging
Baclofen
Baclofen 10 mg
PRESCRIPTION DRUG
Abbreviated New Drug Application
BACLOFEN- BACLOFEN TABLET MCKESSON CONTRACT PACKAGING ---------- BACLOFEN TABLETS USP DESCRIPTION Baclofen is a muscle relaxant and antispastic. Its chemical name is 4-amino-3-(4- chlorophenyl)-butanoic acid. The structural formula is: C H ClNO M.W. 213.66 Baclofen USP is a white to off-white, odorless or practically odorless crystalline powder. It is slightly soluble in water, very slightly soluble in methanol and insoluble in chloroform. Each tablet, for oral administration, contains 10 mg or 20 mg baclofen. In addition, each tablet contains the following inactive ingredients: anhydrous lactose, colloidal silicon dioxide, dibasic calcium phosphate dihydrate, magnesium stearate, microcrystalline cellulose and sodium starch glycolate. CLINICAL PHARMACOLOGY The precise mechanism of action of baclofen is not fully known. Baclofen is capable of inhibiting both monosynaptic and polysynaptic reflexes at the spinal level, possibly by hyperpolarization of afferent terminals, although actions at supraspinal sites may also occur and contribute to its clinical effect. Although baclofen is an analog of the putative inhibitory neurotransmitter gamma-aminobutyric acid (GABA), there is no conclusive evidence that actions on GABA systems are involved in the production of its clinical effects. In studies with animals baclofen has been shown to have general CNS depressant properties as indicated by the production of sedation with tolerance, somnolence, ataxia, and respiratory and cardiovascular depression. Baclofen is rapidly and extensively absorbed and eliminated. Absorption may be dose-dependent, being reduced with increasing doses. Baclofen is excreted primarily by the kidney in unchanged form and there is relatively large intersubject variation in absorption and/or elimination. INDICATIONS AND USAGE Baclofen is 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 Læs hele dokumentet