General Information

Cephalexin is used to treat a wide variety of bacterial infections. These infections include:

  • Bone infections
  • Respiratory tract infections
  • Skin and skin structure infections
  • Otitis media (middle ear infections)
  • Genitourinary (urinary tract) infections

This medication is also used to prevent endocarditis that is caused by an infection. It is an inflammation of the heart valve. Cephalexin helps fight the bacteria in your body.

How does Cephalexin work?

Cephalexin works by stopping or slowing the growth of bacterial cells. It is by preventing bacteria from forming the cell wall that surrounds each cell. The cell wall protects bacteria from the external environment and keeps the contents of the cell together. Bacteria are not able to survive without a cell wall.

This medication should only be used to treat bacterial infections. This will not work for viral infections such as flu or the common cold. Unnecessary use or misuse of any antibiotic may lead to its decreased effectiveness.

Why use Cephalexin?

Cephalexin is a semisynthetic cephalosporin antibiotic drug. This medication is intended for oral use with its brand name Keflex. Each capsule contains Cephalexin equivalent to 250 mg, 500 mg, and 750 mg. This prescription has already been approved by the U.S. Food and Drug Administration (FDA).

How to use Cephalexin?

Cephalexin is to be taken by mouth usually every 6 to 12 hours. You may take each dose with or without a meal. The dosage is based on your medical condition and response to treatment. In children, the dosage is also based on weight.

Remember to take it at the same time every day. Do not take it more often more than the prescription. For the best result, take it regularly. Let your doctor know if your condition does not improve or get worse.

What are the side effects of Cephalexin?

  • Dizziness
  • Diarrhea
  • Headache
  • Tiredness
  • Abdominal pain
  • Stomach upset
  • Nausea
  • Vomiting
  • Swelling
  • Itching
  • Joint pain
  • Vaginal itching or discharge

Warnings and Precautions

  • Before taking Cephalexin, tell your doctor if you are allergic to it. Tell also if you have any allergies or medical history.
  • You should not use this to treat other conditions unless it is given by your doctor.
  • Do not share this with others who have the same symptoms as yours.
  • Inform your doctor if you have current medications or treatments.
  • If you are a pregnant or breastfeeding women, consult your doctor first.
  • Keep this far from the reach of children.