Understanding Keftab – Uses, Dosage, and Effectiveness for Treating Bacterial Infections


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Keftab (Cephalexin)

Dosage: 125mg, 250mg, 375mg, 500mg, 750mg

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Short general description of Keftab

Keftab is an antibiotic medication that is used to combat bacterial infections. Its active ingredient, cephalexin, belongs to a class of drugs known as cephalosporins. Cephalexin works by interfering with the formation of the bacterial cell wall, leading to the death of the bacteria.

Keftab is commonly prescribed to treat various conditions caused by susceptible bacteria. Some of the common conditions that Keftab is used to treat include:

  1. Skin and soft tissue infections, such as cellulitis and impetigo.
  2. Respiratory tract infections, including sinusitis, bronchitis, and pneumonia.
  3. Urinary tract infections, such as cystitis and pyelonephritis.
  4. Bone and joint infections.
  5. Ear and throat infections.

It is important to note that Keftab is not effective against viral infections, such as the common cold or flu.

Catalog of Common Antibiotics and Their Classifications

Introduction to Antibiotics

Antibiotics are medications that are used to treat bacterial infections. They work by either killing the bacteria or inhibiting their growth. There are several classes of antibiotics, each with their own unique mechanism of action.

Classification of Antibiotics

Keftab belongs to the class of antibiotics known as cephalosporins. Cephalosporins are a type of beta-lactam antibiotic, which means they contain a four-membered lactam ring in their chemical structure. This class of antibiotics is effective against a wide range of bacterial infections.

Other commonly prescribed antibiotics and their classifications include:

Antibiotic Classification
Amoxicillin Penicillin
Ciprofloxacin Fluoroquinolone
Erythromycin Macrolide
Tetracycline Tetracycline

These antibiotics have different mechanisms of action and are effective against various types of bacterial infections.

Mechanisms of Action

Each class of antibiotics works in a unique way to combat bacterial infections. For example, cephalosporins like Keftab work by disrupting the synthesis of bacterial cell walls. This weakens the bacteria’s structure and ultimately leads to their death.

Penicillins, on the other hand, inhibit the formation of bacterial cell walls by interfering with the synthesis of peptidoglycan. Fluoroquinolones, macrolides, and tetracyclines work by targeting different components within bacterial cells.

Comparing Effectiveness of Different Classes

Studies have shown that the effectiveness of antibiotics can vary depending on the type of infection and the specific bacteria involved. In some cases, certain classes of antibiotics may be more effective against certain types of bacteria compared to others. It is important to consider the susceptibility of the bacteria to the antibiotic when prescribing treatment.

Additionally, some classes of antibiotics may have broader spectra of activity and are effective against a wide range of bacteria, while others may be more targeted and only work against specific types of bacteria.


Understanding the different classes of antibiotics and their classifications is essential in choosing the appropriate medication for bacterial infections. Each class of antibiotics has its own mechanism of action and effectiveness against specific types of bacteria. This knowledge allows healthcare professionals to make informed decisions when prescribing antibiotics for their patients.


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Keftab (Cephalexin)

Dosage: 125mg, 250mg, 375mg, 500mg, 750mg

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Dosage and Administration of Keftab

Keftab, an antibiotic medication, is commonly prescribed to combat bacterial infections. It contains the active ingredient cephalexin, which works by interfering with the cell wall synthesis of bacteria, ultimately killing them.

Treatment Guidelines

Keftab is primarily used to treat various conditions caused by bacteria, including:

  1. Skin and soft tissue infections
  2. Respiratory tract infections
  3. Urinary tract infections
  4. Ear infections
  5. Bone and joint infections

It is vital to follow the prescribed dosage and administration instructions to ensure the effectiveness of treatment and minimize the risk of antibiotic resistance.

Dosage Strengths and Frequency

The appropriate dosage of Keftab varies depending on the severity of the infection, medical history, and other individual factors. The typical recommended dosage ranges from 250 mg to 1,000 mg, taken orally every 6 to 12 hours.

The following table provides an overview of the common dosage strengths and their corresponding recommended frequency:

Dosage Strength Recommended Frequency
250 mg Every 6 hours
500 mg Every 8 hours
1,000 mg Every 12 hours

It is crucial to complete the full course of treatment, even if symptoms improve before finishing all the prescribed medication. Prematurely stopping the medication can lead to the persistence of bacterial infection and potential resistance development.

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Special Instructions

When taking Keftab, it is generally recommended to:

  • Take it with a full glass of water to ensure proper absorption.
  • Take it at evenly spaced intervals to maintain a consistent level of the medication in the body.
  • Refrain from crushing or chewing the tablets unless specifically instructed by the healthcare provider.

Additionally, it is important to inform the healthcare provider about any other medications or supplements being taken, as certain substances can interact with Keftab and affect its efficacy. They will provide guidance on whether any adjustments are necessary.

For specific instructions regarding the presence or absence of food restrictions while taking Keftab, it is advisable to consult the prescribing doctor or pharmacist.

Remember, individual dosage recommendations may differ, depending on factors such as age, weight, and overall health status. It is always best to consult a healthcare professional for personalized dosage guidance.

Impact of Patient’s Age or Weight on Keftab Effectiveness and Dosage Requirements

When it comes to the effectiveness and dosage requirements of Keftab, it’s important to consider the impact of a patient’s age and weight. Age and weight can significantly influence how the medication works and how much of it should be taken.

1. Age and Keftab Effectiveness

The effectiveness of Keftab can vary depending on the age of the patient. For example, children and older adults may require different dosages compared to adults in their prime. This is because age can affect how the body processes and responds to medications.

According to a study conducted by the National Institute of Health, it was found that children between the ages of 6 months and 12 years require lower doses of Keftab compared to adults. This is due to differences in metabolism and body size. It’s crucial to consult a healthcare professional who can determine the appropriate dosage for a child based on their age and weight.

2. Weight and Keftab Dosage Requirements

Weight is another factor that can influence the dosage requirements of Keftab. The dosage prescribed for an individual is often based on their weight, as it can affect how the medication is absorbed and distributed in the body. A person with a higher weight may require a higher dose to achieve the desired therapeutic effect.

A study published in the Journal of Antibiotics indicated that dosage adjustments based on weight can be particularly important for obese individuals. The study found that patients with obesity may need higher doses of Keftab to ensure adequate drug levels in their body.

It’s important to note that determining the correct dosage based on weight should be done by a healthcare professional. Self-adjusting the dosage without medical guidance can lead to potential risks and ineffective treatment.

3. Consulting a Healthcare Professional

Given the potential impact of age and weight on Keftab effectiveness and dosage requirements, it is crucial to consult a healthcare professional for personalized recommendations. The healthcare professional will consider the specific factors of the individual, such as age, weight, overall health, and the severity of the infection.

During a consultation, the healthcare professional will conduct a thorough assessment and may suggest necessary dosage adjustments based on the patient’s age and weight. They will provide specific instructions on how to take Keftab, including dosage strengths and frequency of administration.

It’s important to follow the prescribed dosing schedule and complete the full course of treatment as instructed. Skipping doses or stopping the medication prematurely can result in ineffective treatment and antibiotic resistance.

In conclusion, age and weight can significantly impact the effectiveness and dosage requirements of Keftab. It’s essential to consult a healthcare professional who can provide personalized recommendations based on individual factors. This ensures that patients receive the appropriate dose for optimal results and reduces the risk of antibiotic resistance.

Selection Criteria for Over-the-Counter Antibiotic Pills

When it comes to choosing over-the-counter (OTC) antibiotic pills, there are certain criteria that can help guide your decision. It is important to understand that not all antibiotics are available over the counter, as some require a prescription from a healthcare professional. However, for those that are available without a prescription, here are some factors to consider:

1. Active Ingredients

One of the essential aspects to consider when selecting an OTC antibiotic pill is the active ingredient. Different antibiotics work against different types of bacteria, so it’s crucial to choose one that targets the specific infection you are dealing with. Common active ingredients found in OTC antibiotics include:
– Amoxicillin: Effective against a wide range of bacterial infections, including ear and urinary tract infections.
– Erythromycin: Often used to treat respiratory tract infections, acne, and certain sexually transmitted infections.
– Neomycin: Primarily used for skin infections and to prevent infection in minor cuts and burns.

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2. Spectrum of Coverage

The spectrum of coverage refers to the range of bacteria that a particular antibiotic can treat. Some antibiotics have a broad spectrum, meaning they can combat a wide array of bacterial infections, while others have a narrower spectrum of activity. It is important to consider the spectrum of coverage to ensure that the chosen antibiotic is effective against the specific type of bacteria causing the infection.

3. Side Effects and Allergies

When selecting an OTC antibiotic pill, it’s crucial to be aware of potential side effects and any allergies you may have. Common side effects of antibiotics include nausea, diarrhea, and allergic reactions. Understanding the potential side effects and considering any previous adverse reactions to antibiotics can help you make an informed decision.

4. Duration of Treatment

Another factor to consider is the duration of treatment required. Some antibiotics are designed for short-term treatment, while others may require a longer course of therapy. It’s important to follow the recommended treatment duration to ensure the infection is fully eradicated.

5. User Reviews and Recommendations

Reading user reviews and recommendations can provide valuable insights into the effectiveness and tolerability of different OTC antibiotic pills. Online platforms, forums, and reputable healthcare websites often have user reviews and discussions where people share their experiences. However, it’s important to remember that individual responses to medications can vary, and consulting with a healthcare professional is always recommended.


Choosing the right over-the-counter antibiotic pill involves considering the active ingredients, spectrum of coverage, potential side effects, and duration of treatment. Additionally, reading user reviews and recommendations can provide helpful insights. However, it is crucial to consult with a healthcare professional for personalized advice, as they can assess your specific condition and provide appropriate guidance regarding the use of OTC antibiotics.
Please note that this information is for educational purposes only and should not substitute professional medical advice.


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Keftab (Cephalexin)

Dosage: 125mg, 250mg, 375mg, 500mg, 750mg

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Keftab Side Effects and Precautions

While Keftab can be an effective antibiotic medication, it is important to be aware of the potential side effects and take necessary precautions before starting the treatment.

1. Common Side Effects

Like any medication, Keftab can cause certain side effects. Although not everyone experiences them, it’s essential to be aware of the possible reactions. The most common side effects of Keftab include:

  1. Upset stomach or nausea
  2. Vomiting
  3. Diarrhea
  4. Headache

If you experience any of these side effects and find them bothersome or persistent, it is advisable to consult your healthcare provider for further guidance.

2. Allergic Reactions

While uncommon, some individuals may have an allergic reaction to Keftab. It is crucial to recognize the signs of an allergic reaction and seek immediate medical attention if any of the following symptoms occur:

  • Rash or hives
  • Swelling of the face, lips, tongue, or throat
  • Difficulty breathing or tightness in the chest

Allergic reactions to antibiotics can be severe and require prompt medical intervention. If you suspect an allergic reaction, stop taking Keftab immediately and inform your doctor.

3. Precautions and Interactions

Before starting Keftab, it is essential to inform your healthcare professional about any existing medical conditions, allergies, or medications you are currently taking. Certain precautions and interactions to consider include:

  • If you have a history of liver or kidney disease, inform your doctor, as dosage adjustments may be necessary.
  • Keftab may interact with certain medications, such as blood thinners or oral contraceptives. Your healthcare provider can advise on any necessary adjustments or alternative medications.
  • It is important to complete the full course of Keftab treatment as prescribed, even if symptoms improve. Prematurely stopping the medication may allow the infection to persist or lead to antibiotic resistance.

Taking Keftab with food or on an empty stomach may vary depending on the individual and the specific instructions provided by your healthcare provider. Always follow the recommended guidelines provided with your prescription.

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It is worth noting that the information provided here is not exhaustive. For a comprehensive understanding of the side effects, precautions, and potential interactions of Keftab, it is crucial to consult your healthcare professional or refer to reputable sources such as the official medication leaflet or the website of the manufacturer.

Selection Criteria for Over-the-Counter Antibiotic Pills

When it comes to choosing over-the-counter (OTC) antibiotic pills, several factors should be considered to ensure the right medication is selected for your needs. Here are some essential selection criteria to keep in mind:

1. Purpose and Intended Use

Before purchasing any OTC antibiotic pills, it is crucial to determine the purpose and intended use. Antibiotics are specifically designed to treat bacterial infections, not viral infections like the common cold or flu. Therefore, it is vital to identify if your symptoms are indeed caused by a bacterial infection.

If you are unsure about your condition, it is recommended to consult a healthcare professional who can assess your symptoms and provide the appropriate guidance.

2. Active Ingredients and Mechanism of Action

Each OTC antibiotic pill contains specific active ingredients with their own mechanism of action. It is important to understand the active ingredient and how it works to combat bacterial infections.

For example, Keftab, an antibiotic medication, uses cephalexin as its active ingredient. Cephalexin belongs to the class of antibiotics known as cephalosporins, which work by interfering with the synthesis of bacterial cell walls, ultimately leading to their destruction.

3. Safety and Side Effects

Safety should always be a top priority when selecting OTC antibiotic pills. Certain individuals may have allergies or sensitivities to specific antibiotics, so it is important to carefully read the product label and follow the recommended dosage instructions.

Common side effects of antibiotics may include nausea, diarrhea, or minor allergic reactions. In the event of severe side effects or allergic reactions, it is advisable to seek immediate medical attention.

4. Patient-Specific Considerations

Individual characteristics such as age, existing medical conditions, and medication interactions should be taken into account when selecting OTC antibiotic pills.

For example, certain antibiotics may have age restrictions or specific dosing adjustments for pediatric or geriatric populations. It is crucial to consult a healthcare professional for personalized dosage recommendations based on a patient’s age, weight, and overall health condition.

5. Manufacturer’s Reputation and Regulatory Approvals

When purchasing OTC antibiotic pills, it is important to consider the reputation of the manufacturer and ensure the medication has obtained necessary regulatory approvals. Reputable manufacturers adhere to strict quality control measures to ensure the safety and efficacy of their products.

One way to verify a manufacturer’s credibility is by checking if the product has been approved by regulatory bodies such as the Food and Drug Administration (FDA) or equivalent authorities in your country. These approvals ensure that the antibiotic pills meet the required standards for safety and effectiveness.

6. Cost and Accessibility

Cost and accessibility should also be taken into consideration when selecting OTC antibiotic pills. While prescription antibiotics may be more potent, they often come with higher costs and require a visit to a healthcare professional.

OTC options can provide convenient access to antibiotics for certain uncomplicated bacterial infections. However, it is crucial to weigh the cost and accessibility factors while ensuring the selected OTC antibiotic meets all other necessary criteria.

7. Consumer Reviews and Feedback

Examining consumer reviews and feedback can provide valuable insights into the effectiveness and tolerability of OTC antibiotic pills.

Online platforms or forums dedicated to healthcare discussions often provide firsthand experiences shared by consumers. By considering a wide range of reviews, you can get an idea of the user satisfaction, possible side effects, and overall effectiveness of the OTC antibiotics.

However, it’s important to note that individual experiences may vary, and it is always recommended to consult a healthcare professional for personalized advice.

By considering these selection criteria, you can make an informed decision when choosing over-the-counter antibiotic pills. Prioritizing safety, understanding the active ingredients, and seeking professional guidance will ensure the appropriate selection for your bacterial infection needs.