Please consult your physician before taking any medication. Generic Name: CEPHALEXIN SUSPENSION - ORAL Pronounced: (sef-a-LEX-in) Keflex Oral Uses: This medication is a cephalosporin-type antibiotic used to treat a wide variety of bacterial infections (e.g., skin, bone and genitourinary tract infections). It works by stopping the growth of bacteria. This antibiotic only treats bacterial infections. It will not work for viral infections (e.g., common cold, flu). Unnecessary use or overuse of any antibiotic can lead to its decreased effectiveness. Keflex may also be used for purposes other than those listed in this medication guide.