Cephalexin 500mg


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Brand Name Keflex
Treatment Bacterial Infections
Discount $25
Delivery Time 2 to 3 Days

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Cephalexin 500mg is an antibiotic that contains beta-lactam and dihydrothiazide. It helps to treat different types of susceptible bacterial infections by prohibiting cell wall synthesis. It was developed in 1967 and approved by Food Drugs and Administration (FDA) on 4 January 1971.

What is Cephalexin 500mg?

The key ingredient in Cephalexin 500mg is the cephalexin monohydrate. The inactive ingredients in Cephalexin 500 mg are hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80, sodium starch glycolate, and also titanium dioxide. Cephalexin 500mg tablet is used to treat infections caused by bacteria. It is a generic medicine sold as an oral therapy to treat bacterial infections and flu.

What is Cephalexin 500mg used for?

Cephalexin 500mg treats a number of bacterial infections such as

  • Otitis media
  • Streptococcal pharyngitis
  • Pneumonia cellulitis
  • Urinary tract infections
  • Bone and joint infections
  • Bacterial endocarditis
  • Penicillin intolerance

Cephalexin 500 mg comes under the class group of cephalosporin as it is an antibiotic medication. Moreover, it is found that cephalexin 500 mg also helps to kill the bad bacteria in the human body and has been found beneficial in treating low symptoms of covid-19. Although it is not possible to cure complete covid but stands useful to treat the virus.

What happens when Cephalexin 500mg interacts with the body?

The bacterial cell-wall synthesis that is present inside the body cephalexin 500mg contains agents that help in restricting them. Cephalexin 500 mg assists in combining the inactive penicillin-binding proteins that are (PBPs) which are present inside the body’s inner membrane of the bacterial cell wall.

How long does Cephalexin 500mg last and work?

Cephalexin 500mg contains agents that last in the body for about five hours in the human body before it eliminates. Nevertheless, some particles of the drugs remain inside the body for a longer period of time. Cephalexin 500 mg starts working quickly after oral administration. However, if you are suffering from a kidney infection or lung issue then the drug particles stay in the human body for about 19 to 22 hours. Hence, oral administration of Cephalexin 500 mg is quick and fast.

When and how to take Cephalexin 500mg?

Cephalexin 500mg comes in the form of tablets, capsules, and liquid form, as well as experts, suggest taking these types of compositions orally by mouth. You may take it during your regular meal or without a meal, it does not affect the strength of the drug. Usually, doctors suggest taking 6 to 12 hours for 7 to 14 days as it depends on the kind of condition you are been treating with. Take your medicine regularly at the same time. As it keeps your medication and body in proper sync.

What happens when you miss the dose of Cephalexin 500mg?

Normally, professional experts suggest taking this drug at the proper time regularly as prescribed. Although if someone forgets to take their medication on time then try and take it as soon as possible. But in case you remember at the time of your next dose then it is strongly and strictly advisable to not double your dose and skip it and take your normal dose according to the timetable.

What happens when you overdose on Cephalexin 500mg?

If you think you are experiencing these side effects then certainly you have overdosed on Cephalexin 500mg. Symptoms include:

  • Nausea
  • Vomiting
  • Diarrhea
  • Color changes in urine like pink, red, or dark brown
  • Stomach pain

Such kind of act can further lead to several health conditions and other diseases. Moreover, it will worsen your medical condition. However, experts suggest contacting your doctors or immediately connecting to a nearby local emergency center.

What are the side effects of Cephalexin 500mg?

Medications often come with side effects which is normal. Every medication has side effects some severe some common  like:

  • Abdominal or stomach pain
  • Blistering, peeling, or loosening of the skin
  • Clay-colored stools
  • General tiredness and weakness
  • Itching or rash
  • Light-colored stools
  • Nausea and vomiting
  • Red skin reactions

But these side effects are normal and humanly bearable. With proper treatment and precautions, you can control such side effects.

What are some adverse effects of Cephalexin 500mg?

There are some adverse effects of Cephalexin 500 mg which include: 

  • Cephalosporins
  • Gastrointestinal (stomach area) distortion
  • Hypersensitivity reactions

Moreover, gastrointestinal distort involves nausea and vomiting. There are also some hypersensitivity reactions like

  • Skin rashes
  • Urticaria
  • Fever
  • Anaphylaxis

Moreover, research has also found effects of Pseudomembranous colitis and Clostridium difficile ( bacterial flora in the gastrointestinal tract) after using Cephalexin 500mg.

How to reduce the side effects of Cephalexin 500mg?

Taking medications on time is very important as it helps in keeping our bodies in sync. Although, side effects occur because the body needs time to adjust to the medicine. You can prefer probiotics, and antibiotics to reduce your side effects. To have better efficiency of the medication you should keep your tablets and also capsules at room temperature and store the liquid form in a cold place like a fridge.

Which food items to avoid while taking Cephalexin 500 mg?

Some food items can interfere with the drugs and should be avoided they are as follows:

  • Acidic foods such  
  • Citrus juice
  • Carbonated beverages
  • Chocolate
  • Antacids
  • Tomato-based products such as ketchup

Who should avoid Cephalexin 500 mg?

People who are suffering from some infections or diseases are not to be consumed Cephalexin 500mg, they are as follows:

  • Clostridium difficile bacteria
  • Inflammation of the large intestine
  • Chronic kidney disease stage 4 (severe)
  • Chronic kidney disease stage 5 (failure)
  • Reduction in kidney function

Which drugs or medications one should avoid while taking Cephalexin 500 mg?

Drugs like Cephalexin 500 mg may not be a good combination if consumed with the following drugs:

  • BCG
  • Cholera vaccine
  • Metformin
  • Multivitamins with minerals
  • Sodium picosulfate
  • Typhoid vaccine
  • Warfarin
  • Zinc

You should consider your doctor’s recommendation before combining any of these drugs with Cephalexin 500mg.


The use of Cephalexin 500mg is majorly to treat skin or soft tissue infections, streptococcal pharyngitis, and mild, genital, and also urinary tract. Professional experts normally suggest dosage is 500mg and advanced to take every 6 hours. Treating other several infections with Cephalexin 500 mg like infections of the bone etc are found effective. Every medication comes with side effects but with proper care and a doctor’s advice, one can control or reduce these side effects. Doctors and also medical authorities highly recommend prescribing Cephalexin 500 mg to treat a myriad of bacteria infections.

Frequently Asked Questions

Q1. Is Cephalexin 500mg penicillin?

Cephalexin is a penicillin-type of antibiotic.

Q2. Can you take ibuprofen with Cephalexin 500 mg?

There is no interaction found between ibuprofen and Cephalexin 500 mg.

Q3. Does cephalexin treat upper respiratory infections?

Yes, Cephalexin 500mg treats respiratory infections.

Additional information
No. of pills

60, 100, 200, 300, 360

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