The cephalexin is an antibiotic drug first generation belonging to the group of cephalosporins. It is used to treat various infections in the respiratory tract, skin, bones, ear, and urinary tract.It is not a commonly prescribed drug; it is used when microorganisms have developed some type of resistance in the body, or as a second option in patients who have been allergic to other medications.It is for these situations that the administration of cephalexin must be deliberate and careful . If it is used very frequently, there will be microorganisms that generate resistance to this drug, and increasingly powerful antibiotics with a broader spectrum should be used.

What is cephalexin for?

Cephalexin is used to treat various diseases generated by microorganisms, such as:

  • Pneumonia
  • Pharyngitis
  • Actinomicosis
  • Elisipela
  • Abdominal infections
  • Bile infections
  • Skin infections
  • Soft tissue infections
  • Genitourinary infections
  • Bone infections
  • Infections in burns
  • Otitis media
  • Sinusitis
  • Rheumatic fever
  • Allergies


Pneumonia is a disease in which the pulmonary alveoli , small sacs responsible for capturing air for breathing, fill with pus and other secretions , and the respiratory process becomes difficult, painful and limited. As a consequence, the body is able to oxygenate itself less.

Pneumonia is caused by both bacteria and viruses. The main ones are:

  • Neumococo: Streptococcus pneumoniae
  • Virus sincitial respiratorio

Cephalexin is responsible for the best possible elimination of the population of these microorganisms in the body.


Cephalexin is prescribed for pharyngitis, which is inflammation of the pharynx , which can cause a sore throat, dryness, redness of the mucosa, fever, and difficulty speaking.


It is a long-term bacterial infection, mainly affecting the face and neck.


Cephalexin is a potent antibiotic drug.

It is a type of skin infection, which can be caused by a cut, drainage problems in the veins, or the lymphatic system or sores.

Abdominal infections

Cephalexin attacks localized infections in the abdominal area, such as infectious peritonitis.

Bile infections

This medication is dedicated to mitigating gallbladder infections, which can cause pain and fever.

Skin infections

Cephalexin acts on bacterial infections on the skin, such as candidiasis, restoring good health and a reconstituted appearance.

Soft tissue infections

This drug attacks these very rare but serious types of bacterial infection, capable of destroying muscle tissues and rendering them motionless.

Genitourinary infections

Cephalexin eliminates bacterial infections located in the reproductive and excretory organs.

Bone infections

This medicine works in infections of the bone tissue, caused mainly by bacteria.

Infections in burns

Cephalexin can be presented in the form of pills, for good absorption in the body.

They are caused by microorganisms that come into contact with the area affected by the burn. The tissue is invaded and they feed on the damaged cells.

Otitis media

It is the inflammation in the middle area of ​​the middle ear, caused by the presence of a bacteria.


Sinusitis is the inflammation of the paranasal sinuses, usually caused by bacteria, but it can also occur due to the presence of a virus or fungus.

Rheumatic fever

Cephalexin is effective in preventing rheumatic fever , an inflammatory disease that can occur after infection with streptococcus bacteria.


The consumption of cephalexin in cases of infection can be very useful, as an alternative to penicillin in patients who are allergic to it.

This article is informative. Please consult your doctor.

Samantha Robson
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Dr. Samantha Robson ( CRN: 0510146-5) is a nutritionist and website content reviewer related to her area of ​​expertise. With a postgraduate degree in Nutrition from The University of Arizona, she is a specialist in Sports Nutrition from Oxford University and is also a member of the International Society of Sports Nutrition.

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