Clarithromycin is a macrolide antibiotic that treats a range of bacterial infections such as infections of the respiratory tract or skin. It may also be prescribed, in combination with other drugs, to combat certain stomach ulcers.

Generic Biaxin, Klaricid, Xetinin XL


Klacid, Clarbact, Claribid, Maclar


Alkem Laboratories, Pfizer, Ipca Laboratories, Abbott, Glenmark


250 mg, 500 mg


If you're considering buying Clarithromycin, it's essential to understand this medication thoroughly. This article aims to give an extensive overview of Clarithromycin, a medicine utilized in treating various bacterial diseases.

We will explore what Clarithromycin is and the benefits it offers. Clarithromycin's mechanism in your body will be discussed in detail. Additionally, we'll delve into potential side effects and precautions necessary when taking this medication.

Understanding the contraindications of Clarithromycin is crucial before deciding to buy Clarithromycin. We also weigh the pros and cons associated with its usage. Lastly, dosage information for different populations will be covered to ensure safe administration.


Table of Contents: Buy Clarithromycin


What is Clarithromycin?

Clarithromycin is an antibiotic used to treat various bacterial infections, such as bronchitis, pneumonia, skin infections, and Helicobacter pylori-induced stomach ulcers.

Doctors prescribe Clarithromycin as it has proven effective against many types of bacteria, including Streptococcus Pneumonia and Haemophilus Influenza. It can even treat severe infections like Mycobacterium avium complex (MAC).

How Does Clarithromycin Work?

Clarithromycin stops bacteria from growing and multiplying by blocking the production of vital proteins. It's like a ninja assassin for bacteria.

A Versatile Antibiotic

Clarithromycin is an antibiotic with a wide range of capabilities, able to battle various types of bacteria. It's like a Swiss Army knife for infections.

How Long Do You Take Clarithromycin?

Your doctor will tell you how long to take Clarithromycin, based on age, health, and infection type. Follow their instructions carefully.

Remember, Clarithromycin may have side effects, so read our guide on precautions before using it.


Benefits of Clarithromycin

Clarithromycin is a powerful antibiotic that kicks the bacterial butt. It's proven effective against various bacteria, including Streptococcus pneumonia, Haemophilus influenza, and Mycobacterium avium complex.

The Power Against Streptococcus Pneumoniae

This bacterium causes severe illnesses like pneumonia, meningitis, and bloodstream infections. Clarithromycin targets this bacterium, helping your body fight off the infection more efficiently.

Fighting Haemophilus Influenza Infections

Haemophilus influenza can cause severe respiratory tract infections like bronchitis or even life-threatening conditions like epiglottitis. Thanks to Clarithromycin's potent antibacterial properties, it clears these infections rapidly and reduces symptoms significantly.

Tackling Mycobacterium Avium Complex (MAC)

Mycobacterium avium complex primarily affects people with weakened immune systems. With its broad-spectrum activity against MAC species, Clarithromycin is essential in managing this condition.

Besides these specific cases, Clarithromycin is a preferred choice for many doctors when prescribing antibiotics. Its wide range means it can quickly treat everything from uncomplicated skin infections to complicated respiratory diseases.

In addition to its high efficacy rate against different types of bacteria, another benefit is its convenient dosing schedule - typically twice daily, which increases patient compliance compared to other antibiotics requiring multiple doses throughout the day.

Please note: Always consult your healthcare provider before starting any new medication regimen.


How Clarithromycin Works Against Bacterial Infections

Clarithromycin is a potent antibiotic that disrupts essential life processes of bacteria. It belongs to a class of antibiotics known as macrolides, which are mainly effective against gram-positive and some gram-negative bacteria.

Clarithromycin works by inhibiting bacterial protein synthesis. It binds to the 50S subunit of the bacterial ribosome, blocking transpeptidation and translocation - two critical steps in protein synthesis for these microorganisms.

By preventing the bacteria from synthesizing proteins, Clarithromycin reduces their ability to spread and multiply, thereby aiding your body's immune system in eliminating them. Clarithromycin allows you to recover more quickly from various bacterial infections by stopping the spread of the disease at its source.

Mechanism Against Specific Bacteria

In addition to its general antibacterial properties, Clarithromycin is specifically effective against certain strains such as Streptococcus pneumonia, Haemophilus influenza, and Mycobacterium avium complex (MAC). In cases involving MAC, widespread in individuals with compromised immune systems like HIV/AIDS patients, Clarithromycin prevents the mycobacteria from producing vital proteins they need for survival.

Bacteriostatic or Bactericidal?

Antibiotics' effects on bacteria can be either bacteriostatic (inhibits their growth) or bactericidal (kills them directly). Clarithromycin generally has a bacteriostatic impact but can act as a bactericide at high concentrations or against susceptible organisms. (source)


  • Please remember that antibiotics like Clarithromycin are potent tools in fighting harmful infections. However, they should always be used responsibly under medical supervision due to potential side effects and growing concerns about antibiotic resistance worldwide.
  • If you have queries regarding the efficacy of Clarithromycin or if it suits your situation, consult your medical practitioner immediately.


Side Effects of Clarithromycin

Like all medications, Clarithromycin can cause side effects in some patients. It is essential to be mindful of potential reactions, so medical help can be sought, as most people generally tolerate the medication well.

Common Side Effects

Clarithromycin's most common side effects include nausea, vomiting, diarrhea, abdominal pain, and headache. These are usually mild and often resolve independently as your body adjusts to the medication. However, if they persist or become severe, contact your healthcare provider for advice.

Rare but Serious Side Effects

Rarely, more severe side effects such as liver damage and allergic reactions may manifest. Signs of liver problems include yellowing eyes or skin (jaundice), dark urine, and persistent nausea/vomiting. Allergic reaction symptoms could involve rash; itching/swelling (especially of the face/tongue/throat); severe dizziness; trouble breathing. If you experience signs of these serious issues while taking Clarithromycin, seek immediate medical help.

Mental/Mood Changes

A less common but noteworthy effect changes mental/mood states such as confusion or hallucinations - especially in elderly patients or those with kidney disease. If you notice any unusual psychological changes while taking this antibiotic, contact a healthcare professional promptly.

Please note that this is not an exhaustive list of possible side effects from clarithromycin use. Always seek medical advice or consult your pharmacist for comprehensive information regarding potential risks when beginning a new medication.


Precautions When Taking Clarithromycin

When taking Clarithromycin, precautions are essential to ensure safety and effectiveness. Inform your healthcare provider about any allergies or medical conditions you have before starting treatment.


Let your doctor know if you've been allergic to antibiotics, especially those in the macrolide family (like erythromycin). An allergic reaction could cause mild skin rashes or severe breathing difficulties.

Medical Conditions

Certain medical conditions can affect how Clarithromycin works or increase the risk of side effects. Discuss any pre-existing medical conditions with your healthcare provider, such as liver or kidney disease, heart rhythm disorders, or myasthenia gravis.

Pregnancy and Breastfeeding

If you expect or want to become pregnant soon, consult your physician before beginning clarithromycin treatment. While research is limited regarding its use during pregnancy and breastfeeding, some studies suggest potential risks.

Mixing Medications: Potential Interactions

Avoid mixing medications without consulting a health professional since certain drugs can interact negatively with Clarithromycin. Some common ones include certain cholesterol-lowering medicines (statins), blood thinners (warfarin), and other antibiotics.

Remember always to follow your healthcare provider's instructions when taking prescription medications like Clarithromycin for optimal results and minimal complications.


Contraindications of Clarithromycin

However, it's not for everyone. Some situations and conditions require avoiding the use of Clarithromycin.

When Not to Use Clarithromycin

People with allergies to macrolide antibiotics such as erythromycin or azithromycin should not take Clarithromycin, as this can cause hives, breathing difficulties, and swelling in the face or throat. Hives, difficulty breathing, and facial/throat swelling may be experienced when allergic to Clarithromycin.

Patients with liver or kidney disease, heart rhythm disorders such as QT prolongation, and electrolyte imbalances like low levels of potassium or magnesium in the blood should also be cautious when taking Clarithromycin.

Moreover, some drugs can interact negatively with Clarithromycin, leading to severe side effects. For instance, Mayo Clinic lists several drugs, including colchicine and simvastatin, which can cause harmful effects when taken with Clarithromycin.

Special Considerations

  • Pregnancy: Although no adequate studies have been conducted on pregnant women using this medication, animal studies show adverse effects. Hence, caution is advised while prescribing it during pregnancy.
  • Breastfeeding: According to the National Library of Medicine, small amounts of Clarithromycin pass into breast milk, which might affect the infant adversely. Therefore, breastfeeding mothers must consult their healthcare provider before starting treatment.

It is essential to inform your physician about any sensitivities you possess or medications you are taking so they can guarantee that Clarithromycin is secure for you.


The Pros and Cons of Clarithromycin

Like any medication, Clarithromycin has its benefits and drawbacks. Understanding these can help you make an informed decision about your treatment.

Pros of Clarithromycin

  • Broad-spectrum antibiotic: Clarithromycin is a broad-spectrum antibiotic that can treat many bacterial infections. Clarithromycin is a beneficial antibiotic for various bacterial disorders, such as pneumonia and skin afflictions.
  • Ease of use: Typically taken orally in tablet form or liquid suspension, Clarithromycin is easy to administer. It's usually prescribed for 7-14 days, depending on the severity and type of infection.
  • Fewer doses per day: Unlike some antibiotics that require considerable amounts throughout the day, Clarithromycin typically needs to be taken only once or twice daily, which improves patient compliance with their medication regimen.

Cons of Clarithromycin

  • Potential side effects: While most people tolerate Clarithromycin well, it has possible side effects such as nausea, vomiting, diarrhea, and abdominal pain. In rare cases, severe reactions, including liver damage or allergic reactions, may occur.
  • Possible drug interactions: Clarithromycin can interact with other medications causing adverse effects. For example, certain cholesterol-lowering drugs (statins) and heart rhythm drugs (antiarrhythmics), among others, could have an increased risk when combined with this antibiotic. Mayo Clinic provides more detailed information on possible drug interactions here.
  • Not suitable for everyone: Certain individuals should not take Clarithromycin due to health conditions such as kidney disease, liver disease, myasthenia gravis, a history of QT prolongation, or known hypersensitivity to macrolide antibiotics.

Understanding the pros and cons of Clarithromycin is crucial for making an informed decision regarding your healthcare. Always consult with your doctor before starting any new medication.


Dosage Information for Clarithromycin

When it comes to taking Clarithromycin, the dosage is vital. The dosage may vary depending on the type and severity of your infection. To ensure you get the most out of your medication, always follow your doctor's instructions to a T. Trust us, it's worth it.

Standard Adult Dosage

For most adult infections, the standard dose is 250mg to 500mg, taken twice daily for 7-14 days. However, some conditions like pneumonia may require a longer course of treatment.

Pediatric Dosage

If you're treating a child, the dosage is usually based on body weight and typically ranges from 7.5mg/kg to 15mg/kg, divided into two daily doses. Remember, the total daily dose should not exceed 1g/day.

Dosage Adjustments

Remember that certain factors, such as kidney function or other medical conditions, may necessitate adjustments in your clarithromycin dosage. For example, patients with severe renal impairment often need their dose reduced by half. (source)

Taking Clarithromycin Safely

To ensure you're using Clarithromycin safely:

  • Never adjust your dosage without consulting a healthcare professional first.
  • If you have a missed dose, take it as soon as feasible unless close to the time for your following one - don't double up.
  • Avoid crushing or chewing extended-release tablets; they must be swallowed whole.

Remember, while these guidelines provide general information about typical dosages of Clarithromycin, every individual is unique and different circumstances might warrant different approaches to therapy. That's why it's essential to consult a healthcare provider before starting any new medication regimen, including antibiotics like Clarithromycin. They will be able to guide you through proper usage and monitor progress throughout treatment, effectively ensuring optimal outcomes.

Key Takeaway: 

Dosage information for Clarithromycin is provided in this section. The standard adult dosage is 250mg to 500mg, taken twice daily for most infections, while the pediatric dosage ranges from 7.5mg/kg to 15mg/kg, divided into two doses per day based on body weight. Dosage adjustments may be necessary depending on factors such as kidney function or other medical conditions, and it's essential to consult with a healthcare provider before starting any new medication regimen, including antibiotics like Clarithromycin.


Clarithromycin and Special Populations

It's crucial to understand Clarithromycin's safety, dosage guidelines, and potential side effects for special populations such as pediatrics and the elderly. These groups often have different physiological responses to medications compared to healthy adults.

Pediatric Use of Clarithromycin: Safety and Dosage Guidelines

The use of Clarithromycin in kids requires careful consideration due to their developing immune systems. It's generally safe for children above six months old with appropriate dosing adjustments based on weight. However, it should be used under a healthcare provider's guidance who will monitor the child closely for any adverse reactions.

Dosage Guidelines:

  • For children aged six months to twelve years, the typical dose of Clarithromycin is 7.5mg/kg every 12 hours with a maximum daily amount of 500mg.
  • A higher dose may be required in severe infections or those caused by less susceptible organisms.

Elderly Patients: What You Need To Know About Clarithromycin

Elderly patients taking Clarithromycin must also exercise caution as they are more likely to have decreased renal function, leading to increased drug levels in their system and causing unwanted side effects. This population group may also be on multiple medications, increasing the risk of drug interactions.

Safety Precautions:

  • Careful monitoring is needed when administering Clarithromycin to elderly patients, especially those with kidney problems or other underlying health conditions.
  • If an older patient has difficulty swallowing tablets, liquid formulations are available that might be easier for them to take.
  • All medication changes, including starting or stopping Clarithromycin, should involve consultation with a healthcare professional.



Are you considering buying Clarithromycin? Learn about its benefits and potential side effects. Clarithromycin is an antibiotic that can effectively treat respiratory tract infections, skin infections, and more.

However, it may cause side effects such as diarrhea, nausea, and stomach pain. Take necessary precautions and consult your healthcare provider for any concerns or questions about its use.

For more information on Clarithromycin, check out these credible sources:

Customers also bought

Popular Products

Similar Product