Cephalexin (Keflex®, Biocef®) is a prescription antibiotic that is licensed to treat a number of bacterial infections. It is used for treating skin infections, sinus infections, respiratory tract infections, and various other types of infections caused by bacteria. It can also be used to prevent heart valve infections.
Available in liquid or capsule form, cephalexin is usually taken two to four times a day. The antibiotic can be taken either with food or on an empty stomach. It is important to take cephalexin at the same times each day to maintain even drug levels in your blood.
Cephalexin is part of a class of drugs called cephalosporins. It prevents bacteria from making and maintaining their cell wall. By affecting the cell wall of bacteria, cephalexin eventually causes the bacteria to die and stops the spread of infection in the body.
(Click Cephalexin for more information on when and how to take cephalexin, to find out what side effects may occur with this drug, and for important warnings associated with this particular antibiotic.)