Keflex is a brand name for cephalexin, a cephalosporin antibiotic that cures bacterial infections in the body. The active ingredient in Keflex is cephalexin, a first generation cephalosporin and a beta-lactam antibiotic.
Cephalosporins are bactericidal agents derived from a naturally occurring fungus. They can kill bacteria by preventing the microorganisms from forming a cell wall, an essential component for bacterial survival. Because cephalexin has a substance called beta-lactam in its molecular structure, it is classified as a beta-lactam antibiotic. Some bacteria produce an enzyme that can break down this structure. Therefore, Keflex is not effective against all types of bacterial infections.
Cephalexin can kill both gram positive and gram negative bacteria. It’s often prescribed for common infections in the ear, urinary tract, bone tissue and skin. Keflex is often prescribed for strep throat, pneumonia and endocarditis caused by bacteria.
Cephalexin is one of the most widely used antibiotics in the world.
Cephalexin is available in tablet, capsule and liquid forms.
Keflex is only available with a physician’s prescription. Do not take Keflex if it has not been prescribed by a medical professional. Antibiotics such as Keflex do not cure viral infections like the common cold.
Keflex dosage will depend on the weight of the host and type of bacteria being treated. Keflex should be taken either twice or four times a day.
Take Keflex only as directed. Do not crush or chew Keflex tablets or capsules before swallowing. Measure Keflex liquid with a precise measuring device.
Do not take more or less of Keflex than directed. Doing so could cause adverse reactions to worsen, or the bacteria to develop a resistance to the treatment.
It’s highly recommended to take Keflex the same time each day to avoid missing a dose. Do not take double doses of Keflex to compensate for a missed dose. Take a missed dose of Keflex as soon as remembered, but skip it if it’s time for the next dose.
Keflex is a largely safe drug to use. However, some individuals may experience one or more of the following side effects:
Mild skin rash
Discomfort in the vagina
Side effects other than the above may occur.
If severe side effects, such as jaundice, unusual bleeding or unbearable abdominal pain, are experienced, immediately seek emergency medical care.
Some side effects are not harmful and should disappear after about a week as the body adjusts to the drug. However, if side effects continue to persist for more than a week, or become severe, consult a doctor immediately.
Do not take Keflex if allergic to cephalexin, cephalosporins, beta-lactam antibiotics or penicillins.
Keflex might not be safe for patients with a history of kidney disease, liver disease and intestinal problems such as colitis.
Keflex may harm nursing infants. Therefore, consult a doctor before use if currently breastfeeding.
Keflex may cause unusual results in certain medical laboratory tests. Therefore, such tests should be done after the Keflex treatment period ends.
Diabetic patients using Keflex must regularly test urine for blood sugar levels.