Cephalexin 500mg Capsules: Over the counter medicine for UTI

Bacterial infections in the respiratory system, bones and skin happen frequently. Know about the Cephalexin 500mg tablet.
The Cephalexin 500mg medicine is considered for treating bacterial infections.
Updated: 4 Jul 2023, 16:41 pm IST
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Know about Cephalexin 500mg

Cephalexin 500mg capsule is categorized under cephalosporin antibiotics that are used to treat bacterial infections. It retards the growth by interfering with the cell wall of bacteria which leads to its killing. It is not indicated for the treatment of colds, flu and other viral infections.

Many pharmaceutical industries manufacture it under different brand names and potencies. The most common brand names of Cephalexin available are Daxbia, Cephadex, and Keflex.

Your doctor will prescribe the medicine after examining your overall health condition. You can easily buy Cephalexin 500mg over the counter.

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Uses of Cephalexin 500mg

Cephalexin 500mg capsules are used to treat various infections that include upper respiratory tract infections, bone infections, skin and skin structure infections, otitis media (Middle ear infection), and genitourinary infections. It is not suggested to be used for children under 1-year-old.

Cephalexin 500mg for UTI

Cephalexin 500mg capsules are commonly prescribed to treat urinary tract infections (UTIs). It belongs to a class of antibiotics called cephalosporins and is effective against a wide range of bacteria commonly associated with UTIs.
When taking Cephalexin for a UTI, it is essential to follow your healthcare provider’s instructions regarding dosage and duration of treatment. Typically, the usual adult dosage is 250-500 mg taken orally every 6 hours, or 500-1000 mg taken orally every 12 hours, for a total of 7-14 days. Even if symptoms improve, it is critical to finish the entire course of antibiotics to ensure that the infection is completely treated. If you have any concerns or experience side effects, consult your healthcare provider for guidance.


The dose setting of Cephalexin depends on various factors such as age, medical history, current condition, the severity of the current condition, and how your body reacts to the first dose. Your healthcare professional will set the dose after considering these factors.

The dosage for children ages 1-14 years of age is 25-50mg/kg for respiratory tract infections. It should be given in divided doses to the patient or as directed by the physician. For adolescents and adults, the dose will be 1-4gm per day in divided doses. In case of severe infection, the doctor might recommend medicine of higher potency.

For children ages between 1-14 years, the daily dosage for Cephalexin to treat ear infections is 75-100mg/kg of body weight. It should be divided into doses and given after every 6 hours. For individuals above 14 years old, the dosage for a day is 1-4gm/day given in a similar way as mentioned above.

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Children of 1-14 years of age having any skin infection should take 25-50mg/kg of body weight in divided doses. Individuals above this age group should take 1-4gm per day in divided doses after every 12 hours. This dosage is similar for patients of bone and genitourinary infections.

How to Take Cephalexin 500mg?

1. This medicine should be taken as instructed by the healthcare professional. Read the label and follow the details of the dosage mentioned on it.
2. Do not use Cephalexin 500mg capsules for any conditions which are not checked by the doctor. Keep in mind that self-medication is dangerous.
3. Take Cephalexin 500mg for the time period suggested by the doctor even though tag symptoms quickly improve. Don’t skip any dose as it may increase the chances of getting a severe infection next time as the bacteria become resistant to the medicine.
4. Avoid sharing this medicine with another person even if having the same condition or symptoms.
5. Store the tablet at room temperature away from light, high temperature, and moisture.
6. Cephalexin affects the results of certain medical tests. So, tell your doctor about it.

Side Effects

Cephalexin 500mg does not cause drowsiness or confusion but there are certain side affects you need to be careful from.

Mild Side Effects

Indigestion, diarrhoea, stomach pain, and inflammation of the stomach lining are a few common side affects you might face when using Cephalexin. Usually, these effects go away within a few days or a couple of weeks. If not, stop the medication and consult your healthcare professional immediately.

Serious Side Effects

If your symptoms feel Ike getting worse or be ones life-threatening, call your doctor promptly. Allergic reactions, hives, difficulty in breathing, and swelling of lips, face, and tongue are included in serious side effects.

Call your doctor if observing watery or bloody diarrhoea with severe stomach pain. Feeling light-headed, unusual tiredness, easy bruising, purple or red spots showing on the skin, pale skin, dark urine, or pain on your side or lower back along with painful urination are a few serious side affects you should not ignore.

As symptoms may vary from person to person, there might be different side effects so always consult with your healthcare professional who knows about your medical history.

Drug Interactions

There are a total of 35 drugs that interact with this medicine and affect its efficacy. Inform your doctor especially if using Metformin or probenecid. Many prescription and over the counter drugs, vitamins, and herbal products are known to interact with Cephalexin.

Warning and Precautions of Cephalexin 500mg capsules

Taking care of precautions is helpful to avoid any serious health conditions. Therefore, if you’re in a certain age group or condition, talk to your doctor first before taking Cephalexin 500mg capsules.

For Children

No studies have been conducted to confirm the effectiveness of Cephalexin in children younger than one year. For this reason, this medicine is not prescribed to infants under one year of age.

For Pregnant and Nursing Mothers

No studies have shown about this drug affects the growing fetus in pregnant women but still talk to your doctor if you are pregnant or planning to have a baby.

Cephalexin 500mg is passed into breast milk and cm causes side effects on the child who is breastfed. Consult your healthcare professional to know whether you need to stop taking medicine or not.

For Elderly

The kidney function of seniors becomes slower with age. This can lead to serious health issues as the body is unable to clear the medicine completely from the body. The longer it stays, the more will be the chances of getting the worst side effects.

For People with Kidney Issues

Individuals going through a kidney problem or a history of kidney disease might not be able to take Cephalexin. This medicine is not completely cleared out from the body which enhances the chance of having some serious side effects. Your doctor will adjust the dose so consult to your doctor to know if this drug is safe for you.


To store Cephalexin 500mg properly, keep it at room temperature (20-25 degrees Celsius) and protect it from extreme temperatures and fluctuations. Avoid excessive moisture by storing it in a dry place away from the bathroom or kitchen sink. Shield it from direct sunlight and intense artificial light by keeping it in a dark location.

Always store Cephalexin in its original packaging, ensuring it is tightly sealed after each use. Keep it away from children and pets. Check the expiration date regularly and discard any expired or unused medication. If in doubt, consult your pharmacist or healthcare professional for specific instructions.

(*Disclaimer: This is a sponsored article for informational or educational purposes only. Before consuming any medicine, patients are advised to consult a doctor or healthcare professional for medical advice regarding information on diagnosis and treatment.)

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