Each capsule contains cephalexin monohydrate equivalent to 250 mg, 500 mg or 750 mg of cephalexin. The capsules also contain carboxymethylcellulose sodium, D&C Yellow No. 10, dimethicone, FD&C Blue No. 1, FD&C Yellow No. 6, gelatin, magnesium stearate, microcrystalline cellulose, and titanium dioxide. Cephalexin, an antibiotic in the cephalosporin family, is used to treat infections caused by bacteria. Cephalexin is prescribed to treat respiratory tract, middle ear, skin, bone, and urinary. At some point most dogs are going to need a dose of antibiotics, either as a preventative measure or to cure an infection of some type. Availability. 250 mg, 500 mg capsules; 250 mg, 500 mg, 1 g tablets; 125 mg/5 mL, 250 mg/5 mL suspension. Actions. Semisynthetic derivative of cephalosporin C. Broad-spectrum, first-generation cephalosporin antibiotic with antiinfective activity similar to that of cefazolin but reportedly less potent. 21K014 cephalexin 250mg/Cap現行藥物外觀. 中文名: 信保欣. 廠牌:信東.