Pays: États-Unis
Langue: anglais
Source: NLM (National Library of Medicine)
CEPHALEXIN (UNII: OBN7UDS42Y) (CEPHALEXIN ANHYDROUS - UNII:5SFF1W6677)
Unit Dose Services
CEPHALEXIN
CEPHALEXIN ANHYDROUS 250 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 and (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 , , , and Skin and skin structure infections caused by and/or Bone infections caused by and/or Genitourinary tract infections, including acute prostatitis, caused by , , and — Culture and susceptibility tests should be initiated prior to and during therapy. Renal function studies should be performed when indicated. To reduce the development of drug-resistant bacteria and maint
Abbreviated New Drug Application
CEPHALEXIN - CEPHALEXIN CAPSULE UNIT DOSE SERVICES ---------- CEPHALEXIN CAPSULES, USP TO REDUCE THE DEVELOPMENT OF DRUG-RESISTANT BACTERIA AND MAINTAIN THE EFFECTIVENESS OF CEPHALEXIN CAPSULES, USP AND OTHER ANTIBACTERIAL DRUGS, CEPHALEXIN CAPSULE, USP SHOULD BE USED ONLY TO TREAT OR PREVENT INFECTIONS THAT ARE PROVEN OR STRONGLY SUSPECTED TO BE CAUSED BY BACTERIA. DESCRIPTION Cephalexin Capsules, USP is a semisynthetic cephalosporin antibiotic intended for oral administration. It is 7-(D-a-Amino-a-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, USP has the following structural formula: The nucleus of cephalexin is related to that of other cephalosporin antibiotics. The compound is a zwitterion; i.e., 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 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 (1439 µmol) of cephalexin. The capsules also contain the following inactive ingredients magnesium stearate, capsule shell contains D & C Yellow No. 10, FD & C Yellow No. 6, FD & C green 3, sodium lauryl sulfate, gelatin, titanium dioxide. In addition, the 500 mg capsule also contains FD & C Blue No. 1. Imprinting ink contains shellac, dehydrated alcohol, isopropyl alcohol, butyl alcohol, propylene glycol, strong ammonia solution, black iron oxide, potassium hydroxide, purified water. _D_ 1617342 C Lire le document complet