What is Lefamulin: Uses, Dosage, Side Effects and More

Lefamulin is a newer antibiotic that helps fight certain bacterial infections in your lungs. It belongs to a unique class of antibiotics called pleuromutilins, which work differently from many other antibiotics you might know.

This medication was specifically designed to treat community-acquired pneumonia, a type of lung infection you can catch outside of hospitals. Your doctor might prescribe lefamulin when other common antibiotics aren't the best choice for your particular infection.

What is Lefamulin Used For?

Lefamulin treats community-acquired pneumonia in adults. This is a lung infection caused by bacteria that you pick up in everyday life, not from being in a hospital or healthcare facility.

Your doctor will typically prescribe this medication when tests show you have pneumonia caused by specific bacteria like Streptococcus pneumoniae, Staphylococcus aureus, or Haemophilus influenzae. These are some of the most common bacteria that cause lung infections in healthy adults.

The medication comes as oral tablets, making it convenient for home treatment. This means you can often recover from pneumonia without needing to stay in the hospital, which many patients find reassuring.

How Does Lefamulin Work?

Lefamulin works by stopping bacteria from making proteins they need to survive and multiply. Think of it as disrupting the bacteria's ability to build essential parts of themselves.

This antibiotic is considered moderately strong and targets the bacterial ribosomes, which are like tiny factories inside bacteria. By blocking these factories, lefamulin prevents the bacteria from growing and eventually kills them.

What makes lefamulin special is its unique mechanism of action. Unlike many other antibiotics, it works in a way that some resistant bacteria haven't learned to fight against yet, making it effective against certain stubborn infections.

How Should I Take Lefamulin?

Take lefamulin exactly as your doctor prescribes, usually once every 12 hours for five days. You can take it with or without food, but taking it with a light meal might help reduce stomach upset.

Swallow the tablets whole with a full glass of water. Don't crush, chew, or break them, as this can affect how the medication works in your body.

Try to take your doses at the same times each day to maintain steady levels of the antibiotic in your system. Setting phone reminders can help you stay on track with your dosing schedule.

If you feel nauseous, eating a small snack like crackers or toast before taking lefamulin can help settle your stomach. Avoid taking it on a completely empty stomach if you're prone to medication-related nausea.

How Long Should I Take Lefamulin For?

Most people take lefamulin for exactly five days, taking one tablet every 12 hours. This shorter course is one of the benefits of this newer antibiotic compared to some older ones that require longer treatment periods.

It's crucial to complete the entire five-day course, even if you start feeling better after just a day or two. Stopping early can allow bacteria to survive and potentially develop resistance to the medication.

Your doctor chose this specific duration because studies show five days is effective for treating community-acquired pneumonia while minimizing the risk of side effects. Don't extend the treatment period on your own, as this doesn't improve effectiveness and may increase your risk of side effects.

What Are the Side Effects of Lefamulin?

Like all medications, lefamulin can cause side effects, though many people tolerate it well. The most common side effects are generally mild and resolve on their own as your body adjusts to the medication.

Here are the side effects you might experience, starting with the most common ones:

• Diarrhea (affects about 1 in 10 people)
• Nausea or stomach discomfort
• Headache
• Dizziness
• Trouble sleeping
• Changes in taste
• Fatigue or feeling more tired than usual

These common side effects usually improve within a day or two and don't require stopping the medication. However, if they become severe or interfere with your daily activities, contact your healthcare provider.

Some less common but more serious side effects require immediate medical attention. These include severe diarrhea that doesn't stop, signs of liver problems like yellowing of your skin or eyes, or unusual changes in your heart rhythm.

Very rarely, some people may experience serious allergic reactions, including difficulty breathing, severe rash, or swelling of the face and throat. If you notice any of these symptoms, seek emergency medical care immediately.

Who Should Not Take Lefamulin?

Lefamulin isn't suitable for everyone, and your doctor will carefully review your medical history before prescribing it. The medication has some important restrictions to ensure your safety.

You should not take lefamulin if you're allergic to it or any of its ingredients. Your doctor will also avoid prescribing it if you have certain heart rhythm problems or take medications that can affect your heart's electrical activity.

People with severe liver disease typically shouldn't take lefamulin because the liver processes this medication. Your doctor may need to adjust your dose or choose a different antibiotic if you have liver problems.

If you're pregnant or breastfeeding, your doctor will likely recommend alternative antibiotics, as there isn't enough safety data for lefamulin in these situations. Always inform your healthcare provider if you're pregnant, planning to become pregnant, or breastfeeding.

Children and teenagers under 18 shouldn't take lefamulin, as it hasn't been studied enough in younger age groups to ensure safety and effectiveness.

Lefamulin Brand Names

Lefamulin is available under the brand name Xenleta in the United States. This is the only brand name currently available for the oral tablet form of this antibiotic.

When you pick up your prescription, the pharmacy label will show either "lefamulin" or "Xenleta," depending on how your doctor wrote the prescription. Both names refer to the same medication.

If you're traveling or getting prescriptions filled at different pharmacies, knowing both the generic name (lefamulin) and brand name (Xenleta) can be helpful for clear communication with healthcare providers.

Lefamulin Alternatives

Several other antibiotics can treat community-acquired pneumonia, and your doctor will choose the best option based on your specific situation. Common alternatives include azithromycin, amoxicillin, and doxycycline.

Your doctor might choose an alternative if you have certain medical conditions, take medications that interact with lefamulin, or if testing shows your infection is caused by bacteria that respond better to other antibiotics.

Fluoroquinolones like levofloxacin are also alternatives, though doctors often prefer lefamulin or other options first due to concerns about fluoroquinolone resistance and side effects.

The choice of antibiotic depends on factors like the severity of your pneumonia, your medical history, other medications you take, and local patterns of bacterial resistance in your community.

Is Lefamulin Better Than Azithromycin?

Both lefamulin and azithromycin are effective treatments for community-acquired pneumonia, but they work in different ways and have different advantages. Neither is universally "better" than the other.

Lefamulin offers a shorter treatment course (5 days versus 5-7 days for azithromycin) and works against some bacteria that have become resistant to azithromycin. This makes it valuable when azithromycin might not be as effective.

Azithromycin has been used for many years and has a well-established safety profile. It's often preferred for people with certain heart conditions or those taking multiple medications due to fewer drug interactions.

Your doctor will consider factors like your medical history, the specific bacteria causing your infection, and local resistance patterns when choosing between these medications. Both are excellent options when used appropriately.