Buy Cephalexin Online

Cephalexin: Drug Information

Cephalexin is an antibiotic used to fight and prevent bacterial infections. Among the infections that can be treated with Cephalexin are respiratory tract infections, skin infections, and ear infections.

Learn more about the usage and administration of Cephalexin.


You can use Cephalexin to treat one of the following bacterial infections:

  • Respiratory tract infection (including pneumonia, bronchitis, tonsillitis, and strep throat)
  • Bone infection (osteomyelitis)
  • Sinus infection (sinusitis)
  • Ear infection (otitis media)
  • Inflammation of the prostate (prostatitis)
  • Urinary tract infection
  • Skin infection (including cellulitis, impetigo, and folliculitis)
Cephalexin is also licensed for the treatment of the above infections in children and infants.

In addition, Cephalexin can be prescribed to prevent bacterial endocarditis (heart valve infection). It is important to remember that Cephalexin is ineffective for treating viral infections.

Cephalexin is often used for common infections in patients who have an allergy to penicillin.

Mechanism of Action

Cephalexin is a part of a group of antibiotics known as cephalosporins. It works by preventing bacteria from cell wall formation, thereby causing them to die and preventing the infection from further spreading.

Among the bacteria which Cephalexin is effective against are the following: Streptococcus pneumoniae, Streptococcus pyogenes, Staphylococcus aureus, E.coli, and Klebsiella pneumonia.

How Supplied

Cephalexin comes as a tablet, capsule, and oral suspension. Cephalexin tablets are available in two strengths: Cephalexin 250 mg and Cephalexin 500 mg.

Dosage and Administration

The following information includes general considerations for how Cephalexin should be used:

  • If Cephalexin tablets bother your stomach, take them with milk or food. They can be taken without food as well.
  • Shake the oral suspension before each use.
  • For most infections, Cephalexin tablets should be taken two or four times a day.
  • It is important to keep an even level of Cephalexin in your body, so try to take it at about the same times.
  • Although you may start feeling better after the first few days of treatment with Cephalexin, you should continue taking the drug for the full treatment course. Your infection may not be treated completely if you stop using Cephalexin pills too soon.
  • Certain medical conditions may affect the dosage of Cephalexin. For example, patients with kidney disease may require a lower dosage of Cephalexin. Make sure your doctor knows what other diseases you have.
The dosage of generic Cephalexin for most bacterial infections varies from 250 mg to 1000 mg (1 g), taken two to four times a day for one or two weeks. Chronic infections may require longer treatment.

The following information includes the average Cephalexin doses:

  • The standard adult dosage of Cephalexin for otitis media (ear infection) is 500 mg taken every 6 hours for 10-14 days.
  • The standard recommended dose of Cephalexin for skin infections is 250 mg taken every 6 hours or 500 mg taken every 12 hours.
  • The usual Cephalexin dose for the treatment of osteomyelitis is 500 mg taken every 6 hours for 4-6 weeks.
  • When used for prostatitis, the usual dose is 500 mg taken every 6 hours for two weeks.
  • When treating upper respiratory tract infection, the usual Cephalexin dose ranges between 250 and 500 mg taken every 6 hours for 7-10 days.
  • When used for the prevention of bacterial endocarditis, the usual Cephalexin dosage is 2000 mg taken one hour prior to surgery.
  • The dosage of Cephalexin for children varies depending on the child’s weight and usually ranges from 25 mg/kg to 100 mg/kg per day, but it should not exceed 4000 mg per day.
The dosage of Cephalexin that your doctor prescribes may differ from the above-mentioned standard doses and will depend on your medical condition, age, whether you have kidney disease, and whether you take other medications.