Ülke: ABD
Dil: İngilizce
Kaynak: NLM (National Library of Medicine)
CEPHALEXIN (UNII: OBN7UDS42Y) (CEPHALEXIN ANHYDROUS - UNII:5SFF1W6677)
H.J. Harkins Company, Inc.
CEPHALEXIN
CEPHALEXIN ANHYDROUS 500 mg
ORAL
PRESCRIPTION DRUG
Cephalexin capsules, USP are indicated for the treatment of the following infections when caused by susceptible strains of the designated microorganisms: - Respiratory tract infections caused by Streptococcus pneumoniae and Streptococcus pyogenes (Penicillin is the usual drug of choice in the treatment and prevention of streptococcal infections, including the prophylaxis of rheumatic fever. Cephalexin capsules, USP are generally effective in the eradication of streptococci from the nasopharynx; however, substantial data establishing the efficacy of cephalexin capsules, USP in the subsequent prevention of rheumatic fever are not available at present.) - Otitis media due to Streptococcus pneumoniae, Haemophilus influenzae , Staphyloccus aureus, Streptococcus pyogenes, and Moraxella catarrhalis - Skin and skin structure infections caused by Staphylococcus aureus and/or Streptococcus pyogenes - Bone infections caused by Staphylococcus aureus and/or Proteus mirabilis - Genitourinary tract infections, includ
Cephalexin capsules, USP are available in: The 250 mg capsules are a white to off-white powder filled into size 2 capsules (white opaque and dark green opaque) that are imprinted with identity code “J1” on the dark green opaque cap, and “J1” on the white opaque body in edible black ink. They are available as follows: The 500 mg capsules are a white to off-white powder filled into size 0 capsules (light green opaque and dark green opaque) that are imprinted with identity code "J2” on the dark green opaque cap, and “J2” on the light green opaque body in edible black ink. They are available as follows: Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature]. Dispense in a tight, light-resistant container with a child-resistant closure.
Abbreviated New Drug Application
CEPHALEXIN - CEPHALEXIN CAPSULE H.J. HARKINS COMPANY, INC. ---------- CEPHALEXIN CAPSULES, USP Rev. 11/10 RX ONLY To reduce the development of drug-resistant bacteria and maintain the effectiveness of Cephalexin and other antibacterial drugs, cephalexin should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria. DESCRIPTION Cephalexin capsules, USP are a semisynthetic cephalosporin antibiotic intended for oral administration. It is 7-(D-α-Amino-α-phenylacetamido)-3-methyl-3-cephem-4-carboxylic acid monohydrate. Cephalexin has the molecular formula C H N O S•H O and the molecular weight is 365.41. Cephalexin has the following structural formula: STRUCTURAL FORMULA The nucleus of cephalexin is related to that of other cephalosporin antibiotics. The compound is a zwitterion; ie, the molecule contains both a basic and an acidic group. The isoelectric point of cephalexin in water is approximately 4.5 to 5. The crystalline form of cephalexin which is available is a monohydrate. It is a white crystalline solid having a bitter taste. Solubility in water is low at room temperature; 1 or 2 mg/mL may be dissolved readily, but higher concentrations are obtained with increasing difficulty. The cephalosporins differ from penicillins in the structure of the bicyclic ring system. Cephalexin has a _D_-phenylglycyl group as substituent at the 7-amino position and an unsubstituted methyl group at the 3- position. Each capsule contains cephalexin monohydrate equivalent to 250 mg (720 μmol) or 500 mg (1,439 μmol) of cephalexin. The capsules also contain colloidal silicon dioxide, D & C Yellow No. 10, FD & C Blue No. 2, gelatin, magnesium stearate, sodium starch glycolate, and titanium dioxide. CLINICAL PHARMACOLOGY HUMAN PHARMACOLOGY Cephalexin is acid stable and may be given without regard to meals. It is rapidly absorbed after oral administration. Following doses of 250 mg, 500 mg, and 1 g, average peak serum levels of approximately 9, 18, and 32 mcg/mL respectively were Belgenin tamamını okuyun