xenleta
Xenleta (Lefamulin Acetate) is a medication used to treat Bacterial Pneumonia.
Lefamulin Acetate · by Hong Kong
Key facts
- Active ingredient
- Lefamulin Acetate
- Form
- Solution, Tablet
- Strength
- Lefamulin Acetate EQ 150MG BASE/15ML (EQ 10MG BASE/ML)
- Type
- Prescription (Rx)
- Brand or generic
- Brand-name
- May treat
- bacterial pneumonia
- Manufacturer
- Hong Kong
- FDA application
- NDA211673
What is Xenleta?
From the FDA label:XENLETA is a semi-synthetic antibacterial agent for oral and intravenous administration. XENLETA, a pleuromutilin derivative, is available as 14- O -{[(1 R ,2 R ,4 R )-4-amino-2-hydroxy-cyclohexylsulfanyl]-acetyl}-mutilin in the form of an acetic acid salt (acetate). It is a chemical substance with a molecular weight of 567.79 grams per mole. Its empirical formula is C 30 H 49 NO 7 S and its chemical structure is: XENLETA Tablets for oral administration are available as blue, oval, film-coated tablets containing 671 mg lefamulin acetate equivalent to 600 mg lefamulin. The inactive ingredients are colloidal silicon dioxide, croscarmellose sodium, FD&C Blue No 2 aluminum lake, ferrosoferric oxide, magnesium stearate, mannitol, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol (partially hydrolyzed), povidone K30, shellac glaze, talc, and titanium dioxide. XENLETA Injection supplied as a sterile injection for intravenous use is available as a clear colorless solution in a glass vial containing 168 mg of lefamulin acetate equivalent to 150 mg of lefamulin in 15 mL of 0.9% sodium chloride. This is equivalent to 10 mg/mL lefamulin. The inactive ingredients are sodium chloride and water for injection. XENLETA Injection must be diluted with the diluent supplied with XENLETA Injection, before administration by intravenous infusion. Each supplied diluent infusion bag…
How to use
Xenleta is sold in more than one form (Solution and Tablet), and each is dosed differently. The instructions below come from the FDA label for application NDA211673 — follow the label that came with the product you were actually prescribed.
For treatment of adults with CABP, the recommended dosage of XENLETA is as follows: *With the option to switch to XENLETA Tablets 600 mg every 12 hours to complete the treatment course. Dosage Treatment Duration 150 mg every 12 hours by intravenous infusion over 60 minutes* ( 2.1 ) 5 to 7 days 600 mg orally every 12 hours. ( 2.1 ) 5 days Patients with Hepatic Impairment : Reduce the dosage of XENLETA Injection to 150 mg infused over 60 minutes every 24 hours in patients with severe hepatic impairment (Child-Pugh Class C). XENLETA Tablets have not been studied in and are not recommended for patients with moderate (Child-Pugh Class B) or severe hepatic impairment ( 2.2 ). Administration Instruction for XENLETA Tablets : Take at least 1 hour before a meal or 2 hours after a meal. Swallow XENLETA Tablets whole with water (6 to 8 ounces). ( 2.3 ) Administration Instruction for XENLETA Injection : Infuse over 60 minutes. ( 2.3 ) See Full Prescribing Information for additional information on the administration and preparation of XENLETA Tablets and Injection. ( 2.4 ) 2.1 Recommended Dosage For treatment of adults with CABP, the recommended dosage of XENLETA is described in Table 1 below. For patients with severe hepatic impairment, dosage adjustment is required [see Dosage and Administration ( 2.2 )] . Table 1: Dosage of XENLETA in Adult CABP Patients *With the option to switch to…
Side effects
The following clinically significant adverse reactions are described elsewhere in the labeling: QT Prolongation [see Warnings and Precautions ( 5.1 )] . Clostridioides difficile -associated Diarrhea [see Warnings and Precautions ( 5.3 )] . Most common adverse reactions (incidence ≥2%) are: XENLETA Injection : administration site reactions, hepatic enzyme elevation, nausea, hypokalemia, insomnia, headache. ( 6.1 ) XENLETA Tablets : diarrhea, nausea, vomiting, hepatic enzyme elevation. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Meitheal Pharmaceuticals Inc. at 1-888-808-5529 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. XENLETA was evaluated in two clinical trials in CABP patients (Trial 1 and Trial 2). Across the two trials, a total of 641 patients were treated with XENLETA. Trial 1 (intravenous [IV] to oral dosing switch trial) enrolled 551 adult patients, 276 randomized to XENLETA (273 received at least one dose of XENLETA) and 275 randomized to moxifloxacin (273 received at least one dose of moxifloxacin). Trial 2 (oral dosing only trial) enrolled 738 adult patients,…
Warnings
Important safety information
QT Prolongation : Avoid use in patients with known QT prolongation, ventricular arrhythmias including torsades de pointes, and patients receiving drugs that prolong the QT interval such as antiarrhythmic agents. ( 5.1 ) Embryo-Fetal Toxicity : May cause fetal harm. Advise females of reproductive potential of the potential risk to the fetus and to use effective contraception. ( 5.2 , 8.1 , 8.3 ) Clostridioides difficile -associated Diarrhea (CDAD) : Evaluate patients who develop diarrhea. ( 5.3 ) 5.1 QT Prolongation XENLETA has the potential to prolong the QT interval of the electrocardiogram (ECG) in some patients. Avoid XENLETA use in the following patients: Patients with known prolongation of the QT interval Patients with ventricular arrhythmias including torsades de pointes Patients receiving Class IA (for example, quinidine, procainamide) or Class III (for example, amiodarone, sotalol) antiarrhythmic agents Patients receiving other drugs that prolong the QT interval, such as antipsychotics, erythromycin, pimozide, moxifloxacin, and tricyclic antidepressants In patients with renal failure who require dialysis, metabolic disturbances associated with renal failure may lead to QT prolongation. In patients with mild, moderate, or severe hepatic impairment, metabolic disturbances associated with hepatic impairment may lead to QT prolongation. If use with XENLETA cannot be avoided in specific populations predisposed to QT prolongation or those receiving another drug that prolongs the QT interval, ECG monitoring is recommended during treatment. The magnitude of QT prolongation may increase with increasing concentrations of XENLETA or increasing the rate of infusion of the intravenous formulation. Therefore, the recommended dose and infusion rate should not be exceeded. 5.2 Embryo-Fetal Toxicity Based on findings from animal studies, lefamulin may cause fetal harm when administered to pregnant women. Animal studies indicate that administration of lefamulin resulted in an increased incidence of post-implantation fetal loss and stillbirths in rats and rabbits treated during the period of organogenesis or in rats treated from the beginning of organogenesis through the time of weaning. Additional rat pup deaths were observed during early lactation that were likely related to maternal treatment with lefamulin. Decreased fetal body weights and ossification in rats and rabbits, and apparent delay in sexual maturation in rats may indicate treatment-related developmental delay, while other findings such as malformations in rats at systemic exposures lower than the systemic exposure in CABP patients may indicate a risk for embryo-fetal toxicity. Verify pregnancy status in females of reproductive potential prior to initiating XENLETA. Advise females of reproductive potential to use effective contraception during treatment with XENLETA and for 2 days after the final dose. Advise pregnant women and females of reproductive potential of the potential risk to a fetus [see Use in Specific Populations ( 8.1 , 8.3 )] . 5.3 Clostridioides difficile -associated Diarrhea Clostridioides difficile -associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including XENLETA, and may range in severity from mild diarrhea to fatal colitis. Treatment with antibacterial agents alters the normal flora of the colon leading to overgrowth of C. difficile . C. difficile produces toxins A and B which contribute to the development of CDAD. Hypertoxin-producing isolates of C. difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea following antibacterial drug use. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents. If CDAD is suspected or confirmed, ongoing antibacterial drug use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibacterial drug treatment of C. difficile , and surgical evaluation should be instituted as clinically indicated. 5.4 Development of Drug-Resistant Bacteria Prescribing XENLETA in the absence of a proven or strongly suspected bacterial infection or a prophylactic indication is unlikely to provide benefit to the patient and increases the risk of the development of drug-resistant bacteria.
Who should not take Xenleta
XENLETA is contraindicated in patients with known hypersensitivity to lefamulin, pleuromutilin class drugs, or any of the components of XENLETA. ( 4.1 ) Concomitant use of XENLETA tablets with CYP3A substrates that prolong the QT interval is contraindicated. ( 4.2 ) 4.1 Hypersensitivity XENLETA is contraindicated in patients with known hypersensitivity to lefamulin, pleuromutilin class drugs, or any of the components of XENLETA. 4.2 CYP3A4 Substrates That Prolong the QT Interval XENLETA Tablets are contraindicated with sensitive CYP3A4 substrates that prolong the QT interval (for example, pimozide). Concomitant administration of oral XENLETA with sensitive CYP3A4 substrates may result in increased plasma concentrations of these drugs, leading to QT prolongation and cases of torsades de pointes [see Warnings and Precautions ( 5.1 ), Drug Interactions ( 7.2 ), and Clinical Pharmacology ( 12.3 )] .
Overdose — what happens if you take too much
Treatment of overdose with XENLETA should consist of observation and general support measures. Lefamulin and its primary metabolite are not dialyzable.
U.S. Poison Control: call or text 1-800-222-1222 (free, 24/7). In an emergency call 911. From the FDA label; not medical advice.
Interactions
XENLETA Injection Strong or moderate CYP3A inducers or P-gp inducers Avoid XENLETA unless the benefit outweighs the risk. Monitor for reduced efficacy. ( 7.1 ) XENLETA Tablets Strong or moderate CYP3A inducers or P-gp inducers Avoid XENLETA unless the benefit outweighs the risk. Monitor for reduced efficacy. ( 7.1 ) Strong CYP3A inhibitors or P-gp inhibitors Avoid XENLETA. ( 7.1 ) Moderate CYP3A inhibitors or P-gp inhibitors Monitor for adverse reactions. ( 7.1 ) CYP3A substrates that prolong the QT interval Concomitant use is contraindicated. ( 4.2 , 7.2 ) Midazolam and other sensitive CYP3A substrates Monitor for adverse reactions. ( 7.2 ) 7.1 Effect of Other Drugs on XENLETA Strong and Moderate CYP3A Inducers or P-gp Inducers Concomitant use of oral or intravenous XENLETA with strong CYP3A4 inducers or P-gp inducers decreases lefamulin AUC and C max [see Clinical Pharmacology ( 12.3 )] , which may reduce the efficacy of XENLETA. Avoid concomitant use of XENLETA Injection and XENLETA Tablets with strong and moderate CYP3A4 inducers or P-gp inducers unless the benefit outweighs the risks. Strong and Moderate CYP3A Inhibitors or P-gp Inhibitors Concomitant use of XENLETA Tablets with strong CYP3A inhibitors or P-gp inhibitors increases lefamulin AUC [see Clinical Pharmacology ( 12.3 )] , which may increase the risk of adverse reactions with XENLETA Tablets. Avoid concomitant use of XENLETA Tablets with strong CYP3A inhibitors or P-gp inhibitors. Monitor for adverse effects of XENLETA Tablets when administered concomitantly with moderate CYP3A inhibitors or P-gp inhibitors. 7.2 Effect of XENLETA on Other Drugs CYP3A4 Substrates Concomitant use of XENLETA Tablets with sensitive CYP3A4 substrates increases the AUC and C max of CYP3A4 substrates [see Clinical Pharmacology ( 12.3 )] , which may increase the risk of toxicities associated with cardiac conduction. Concomitant use with CYP3A substrates known to prolong the QT interval is contraindicated [see Contraindications ( 4.2 )] . Concomitant use of sensitive CYP3A substrates with XENLETA Tablets requires close monitoring for adverse effects of these drugs (for example, alprazolam, diltiazem, verapamil, simvastatin, vardenafil). Concomitant use of XENLETA Injection with CYP3A4 substrates does not affect the exposure of CYP3A4 substrates. 7.3 Drugs that Prolong QT The pharmacodynamic interaction potential to prolong the QT interval of the electrocardiogram between XENLETA and other drugs that effect cardiac conduction is unknown. Therefore, avoid concomitant use of XENLETA Injection and XENLETA Tablets with such drugs (for example, Class IA and III antiarrhythmics, antipsychotics, erythromycin, moxifloxacin, tricyclic antidepressants).
May treat (source: NIH RxClass)
Dosage forms
Solution and Tablet
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
Ways to save
Ask for the generic
Same active ingredient, far cheaper. Is there a generic? →
Request a 90-day supply
Bulk fills usually lower the per-dose price vs monthly refills.
Use copay cards
Manufacturer copay cards & patient-assistance programs — especially for brand drugs.
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Frequently asked questions
- What does Xenleta treat?
- Xenleta (Lefamulin Acetate) may be used to treat bacterial pneumonia, based on NIH RxClass drug-classification data (conditions a drug may treat — not a verbatim copy of the FDA-approved label). This is general reference, not medical advice.
- Is there a coupon or discount for Xenleta?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Xenleta. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
- Who makes Xenleta?
- Xenleta is marketed by Hong Kong. You can see Hong Kong's full profile, rating, and other products on pharmaranks.
- Is Xenleta a brand-name or generic drug?
- Xenleta is a brand-name product with the active ingredient Lefamulin Acetate.
- Is Xenleta available over the counter?
- No. Xenleta is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
- What forms does Xenleta come in?
- Xenleta is currently marketed as solution and tablet, per the FDA's National Drug Code Directory.
- Is Xenleta FDA-registered?
- Xenleta is on record with the U.S. FDA under application number NDA211673. You can verify this on its official FDA label.
- Is Xenleta safe?
- There's no single safe-or-not verdict, and we don't yet have a composite recall-safety score for Xenleta. Review its FDA-label side effects and warnings below, and always consult a licensed professional.
- What are the side effects of Xenleta?
- Xenleta's side effects are taken directly from its FDA label. From the label: The following clinically significant adverse reactions are described elsewhere in the labeling: QT Prolongation [see Warnings and Precautions ( 5.1 )] . Clostridioides difficile -associated Diarrhea [see Warnings and Precautions ( 5.3 )] .… Both common and serious reactions are documented in full on this page. This is general reference from the FDA, not medical advice — always consult a professional.
Clinical content sourced from the FDA label via openFDA (U.S. FDA). View the FDA label on DailyMed → Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
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