Tips

It is safe to take with or without food.

Take exactly as directed and for the time period specified. Even if you feel better, do not finish the course sooner than prescribed because this promotes the growth of resistant bacteria. Cephalexin should not be used for any other infection than the one for which it was prescribed. Cephalexin is not effective against viral infections such as the flu.

Seek medical attention if you develop chronic diarrhea while taking cephalexin or within a few months of finishing it.

If you experience any concerning side effects after taking cephalexin, such as abdominal pain, excessive bruising or bleeding, or a rash, consult your doctor.