POSACONAZOLE 100 mg Tablet, 60-count
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the Azole Antifungal class.
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🏭 Manufacturer & labeler
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🩺 Clinical
Posaconazole is used to prevent serious fungal infections that can spread throughout the body in adults and children 2 years of age and older with a weakened ability to fight infection. Posaconazole delayed-release tablets are used to treat invasive aspergillosis (a serious fungal infection that begins in the lungs and spreads through the bloodstream to other organs) in adults and teenagers 13 years of age and older. Posaconazole oral suspension is also used to treat yeast infections of the mouth and throat including yeast infections in adults and teenagers 13 years of age and older that could...
Read the full MedlinePlus article ↗- Posaconazole fights serious fungal infections, not bacterial ones. Depending on your situation, you may be taking it to treat invasive aspergillosis — a mold infection that can aff...
- What exactly is posaconazole treating — what kind of infection is this?
- It depends on which form you have. The delayed-release tablets can be taken with or without food — that's one of their advantages. But if you have the oral suspension (the liquid),...
- Does it matter if I take the tablets with food or not?
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💊 What it looks like
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII M28OL1HH48
Croscarmellose sodium is a plant-based substance derived from cellulose. It acts as a disintegrant, helping tablets and capsules break down quickly in the digestive system so the medicine can be absorbed.
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UNII EX438O2MRT
Ferric oxide yellow is a naturally occurring iron compound used as a colorant in medications. It gives tablets, capsules, and other forms a yellow or golden hue for identification and appearance.
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UNII U3JF91U133
Hydroxypropyl cellulose is a plant-derived polymer that acts as a binder, thickener, and film-former in medications. It helps hold tablet ingredients together, control how quickly the drug dissolves, and create protective coatings on pills.
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UNII 36BGF0E889
Hypromellose acetate succinate is a modified plant cellulose used as a film coating on tablets and capsules. It helps protect the medicine and control where it dissolves in the digestive tract.
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UNII 70097M6I30
Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.
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UNII OP1R32D61U
Microcrystalline cellulose is a purified form of cellulose, a natural fiber from plant sources. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and give the medicine its shape and size.
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UNII G2M7P15E5P
Polyethylene glycol 3350 is a synthetic polymer used as a solvent, humectant, and thickening agent in medicines. It helps dissolve other ingredients, retain moisture in the product, and achieve the desired consistency.
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UNII 532B59J990
Polyvinyl alcohol is a synthetic polymer made from plant-derived materials. It's used as a binder to hold ingredients together, a film-former in coatings, and a thickener in liquid formulations.
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UNII ETJ7Z6XBU4
Silicon dioxide is a naturally occurring mineral used as a glidant and anti-caking agent. It helps powder ingredients flow smoothly and prevents clumping during manufacturing and storage.
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UNII 7SEV7J4R1U
A powder made from a naturally occurring mineral. In medicines, talc works as a glidant and anti-caking agent, helping tablets and capsules flow smoothly during manufacturing and preventing clumping.
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UNII 15FIX9V2JP
Titanium dioxide is a bright white mineral powder commonly used as a colorant and opacifying agent. It makes pills and tablets white or lighter in color and helps make coatings non-transparent.
11 inactive ingredients listed in the exact product block matched to this NDC.
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ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per ea | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $1.997 | $119.81 / 60 tablets |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · Q2 2026 | $10.45 | $627.28 / 60 tablets |
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Posaconazole 100 mg 00254-2045-02 | ENDO | 60 tablets | $1.997 | — | Availability likely | — |
| Posaconazole 100 mg 00406-7711-60 | SpecGx | 60 tablets | $1.997 | AB | Availability likely | — |
| Posaconazole 100 mg 00904-7149-04 | Major | 1 tablet | $1.997 | AB | Availability likely | — |
| Posaconazole 100 mg 16714-0535-01 | NorthStar | 60 tablets | $1.997 | AB | Availability likely | — |
| Posaconazole 100 mg 31722-0677-60 | Camber | 60 tablets | $1.997 | AB | Availability likely | — |
| Posaconazole 100 mg 43598-0470-60 | Dr.Reddys | 60 tablets | $1.997 | AB | Availability likely | — |
| Posaconazole 100 mg 50268-0683-12 | AvPAK | 1 tablet | $1.997 | AB | Availability likely | — |
| Posaconazole 100 mg 59651-0596-60 | Aurobindo | 60 tablets | $1.997 | AB | Availability likely | — |
| Posaconazole 100 mg 60687-0523-21 | American | 1 tablet | $1.997 | AB | Availability likely | — |
| Posaconazole 100 mgthis 62135-0429-60 | Chartwell | 60 tablets | $1.997 | AB | Availability likely | — |
| Posaconazole 100 mg 70377-0038-11 | Biocon | 60 tablets | $1.997 | AB | Availability likely | — |
| Posaconazole 100 mg 70748-0258-07 | Lupin | 60 tablets | $1.997 | AB | Availability likely | — |
| posaconazole 100 mg 72205-0168-60 | Novadoz | 60 tablets | $1.997 | AB | Availability likely | — |
| Posaconazole 100 mg 72319-0023-02 | i3 | 60 tablets | $1.997 | AB | Availability likely | — |
| Noxafil 100 mg 00085-4324-02 | Merck | 60 tablets | — | — | FDA listed | — |
| Posaconazole 100 mg 00527-2133-30 | Lannett | 24 tablets | — | AB | FDA listed | — |
| Posaconazole 100 mg 17856-2133-01 | ATLANTIC | 1 tablet | — | AB | FDA listed | — |
| Posaconazole 100 mg 42291-0919-60 | AvKARE | 60 tablets | — | AB | FDA listed | — |
| Posaconazole 100 mg 51407-0676-60 | Golden | 60 tablets | — | AB | FDA listed | — |
| Posaconazole 100 mg 63629-2236-01 | Bryant | 60 tablets | — | — | Discontinued | — |
| Posaconazole 100 mg 69238-1476-03 | Amneal | 30 tablets | — | AB | FDA listed | — |
| Posaconazole 100 mg 71335-2665-01 | Bryant | 60 tablets | — | AB | FDA listed | — |
| Posaconazole 100 mg 71335-2930-01 | Bryant | 60 tablets | — | AB | FDA listed | — |
| Posaconazole 100 mg 72162-2243-02 | Bryant | 20 tablets | — | AB | FDA listed | — |
| Posaconazole 100 mg 73141-0023-02 | A2A | 60 tablets | — | AB | FDA listed | — |
Where does this data come from?
⏳ Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 62135-0429-60 You're viewing this | 60 TABLET in 1 BOTTLE (62135-429-60) | 2022-12-12 | Active |
📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE Posaconazole delayed-release tablets is an azole antifungal agent indicated as follows: ( 1 ) Posaconazole delayed-release tablets are indicated for the prophylaxis of invasive Aspergillus and Candida infections in patients who are at high risk of developing these infections due to being severely immunocompromised, such as hematopoietic stem cell transplant (HSCT) recipients with graftversushost disease (GVHD) or those with hematologic malignancies with prolonged neutropenia from chemotherapy as follows: ( 1.2 ) Posaconazole delayed-release tablets : adults and pediatric patients 13 years of age and older ( 1 )
1.2Prophylaxis of Invasive Aspergillus and Candida Infections Posaconazole is indicated for the prophylaxis of invasive Aspergillus and Candida infections in patients who are at high risk of developing these infections due to being severely immunocompromised, such as hematopoietic stem cell transplant (HSCT) recipients with graft-versus-host disease (GVHD) or those with hematologic malignancies with prolonged neutropenia from chemotherapy. [see Clinical Studies ( 14.2 )] as follows: Posaconazole delayed-release tablets: adults and pediatric patients 13 years of age and older Additional Pediatric Use information is approved for Merck Sharp & Dohme Corp.’s NOXAFIL (posaconazole) delayed-release tablets.
However, due to Merck Sharp & Dohme Corp.’s marketing exclusivity rights, this drug product is not labeled with that pediatric information.
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Posaconazole oral suspension is not substitutable with posaconazole delayed-release tablets due to the differences in the dosing of each formulation. ( 2.1 ) Administer posaconazole delayed-release tablets with or without food. ( 2.1 ) Table 1.
Recommended Dosage in Adult Patients and Pediatric Patients aged 13 years and older Indication Dosage Form, Dose and Duration of Therapy Prophylaxis of invasive Aspergillus and Candida infections Posaconazole Delayed-Release Tablets: Loading dose : 300 mg (three 100 mg delayed-release tablets) twice a day on the first day. ( 2 ) Maintenance dose : 300 mg (three 100 mg delayed-release tablets) once a day, starting on the second day. Duration of therapy is based on recovery from neutropenia or immunosuppression.
( 2.2 , 2.3 ) ( 2 )
2.1Important Administration Instructions Non-substitutable Posaconazole oral suspension is not substitutable with posaconazole delayed-release tablets due to the differences in the dosing of each formulation [see Dosage and Administration ( 2.2 , 2.3 )] . Swallow tablets whole. Do not divide, crush, or chew.
Administer with or without food [see Dosage and Administration ( 2.5 ) and Clinical Pharmacology ( 12.3 )] . For patients who cannot eat a full meal, Posaconazole delayed-release tablets should be used instead of posaconazole oral suspension for the prophylaxis indication. Posaconazole delayed-release tablets generally provide higher plasma drug exposures than posaconazole oral suspension under both fed and fasted conditions.
2.2Dosing Regimen in Adult Patients Table 1: Dosing Regimens in Adult Patients Indication Dose and Frequency Duration of Therapy Prophylaxis of invasive Aspergillus and Candida infections Loading dose: 300 mg (three 100 mg delayed-release tablets) twice a day on the first day. Maintenance dose: 300 mg (three 100 mg delayed-release tablets) once a day, starting on the second day. Loading dose: 1 day.
Maintenance dose: Duration of therapy is based on recovery from neutropenia or immunosuppression.
2.3Dosing Regimen in Pediatric Patients (ages 13 to less than 18 years of age) The recommended dosing regimen of posaconazole for pediatric patients 13 to less than 18 years of age is shown in Table 2 [see Dosage and Administration ( 2.5 ) and Clinical Pharmacology ( 12.3 )] . Table 2: Posaconazole Delayed-Release Tablet Dosing Regimens for Pediatric Patients (ages 13 to less than 18 years of age) Recommended Pediatric Dosage and Formulation Indication Delayed-Release Tablet Duration of therapy Prophylaxis of invasive Aspergillus and Candida infections Loading dose: 300 mg twice daily on the first day Maintenance dose: 300 mg once daily Duration of therapy is based on recovery from neutropenia or immunosuppression.
Additional Pediatric Use information is approved for Merck Sharp & Dohme Corp.’s NOXAFIL (posaconazole) delayed-release tablets. However, due to Merck Sharp & Dohme Corp.’s marketing exclusivity rights, this drug product is not labeled with that pediatric information.
2.5Administration Instructions for Posaconazole Delayed-Release Tablets Swallow tablets whole. Do not divide, crush, or chew. Administer posaconazole delayed-release tablets with or without food [see Clinical Pharmacology ( 12.3 )] .
2.7Non-substitutability between Posaconazole Oral Suspension and Other Formulations Posaconazole oral suspension is not substitutable with posaconazole delayed-release tablets due to the differences in the dosing of each formulation. Therefore, follow the specific dosage recommendations for each of the formulations [see Dosage and Administration ( 2.2 , 2.3 )] .
2.9Dosage Adjustments in Patients with Renal Impairment The pharmacokinetics of posaconazole delayed-release tablets is not significantly affected by renal impairment. Therefore, no adjustment is necessary for oral dosing in patients with mild to severe renal impairment.
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Posaconazole delayed-release tablets are available as yellow, coated, oblong tablets, debossed with "100" on one side containing 100 mg of posaconazole. Posaconazole delayed-release tablet 100 mg ( 3 )
⛔ Contraindications ▾
4 CONTRAINDICATIONS Known hypersensitivity to posaconazole or other azole antifungal agents. ( 4.1 ) Coadministration of posaconazole with the following drugs is contraindicated; Posaconazole increases concentrations and toxicities of: Sirolimus ( 4.2 , 5.1 , 7.1 ) CYP3A4 substrates (pimozide, quinidine): can result in QTc interval prolongation and cases of torsades de pointes (TdP) ( 4.3 , 5.2 , 7.2 ) HMG-CoA Reductase Inhibitors Primarily Metabolized through CYP3A4 ( 4.4 , 7.3 ) Ergot alkaloids ( 4.5 , 7.4 ) Venetoclax: in patients with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) at initiation and during the ramp up phase ( 4.6 , 5.10 , 7.16 )
4.1Hypersensitivity Posaconazole is contraindicated in persons with known hypersensitivity to posaconazole or other azole antifungal agents.
4.2Use with Sirolimus Posaconazole is contraindicated with sirolimus. Concomitant administration of posaconazole with sirolimus increases the sirolimus blood concentrations by approximately 9-fold and can result in sirolimus toxicity [see Drug Interactions ( 7.1 ) and Clinical Pharmacology ( 12.3 )] .
4.3QT Prolongation with Concomitant Use with CYP3A4 Substrates Posaconazole is contraindicated with CYP3A4 substrates that prolong the QT interval. Concomitant administration of posaconazole with the CYP3A4 substrates, pimozide and quinidine may result in increased plasma concentrations of these drugs, leading to QTc prolongation and cases of torsades de pointes [see Warnings and Precautions ( 5.2 ) and Drug Interactions ( 7.2 )] .
4.4HMG-CoA Reductase Inhibitors Primarily Metabolized Through CYP3A4 Coadministration with the HMG-CoA reductase inhibitors that are primarily metabolized through CYP3A4 (e.g., atorvastatin, lovastatin, and simvastatin) is contraindicated since increased plasma concentration of these drugs can lead to rhabdomyolysis [see Drug Interactions ( 7.3 ) and Clinical Pharmacology ( 12.3 )] .
4.5Use with Ergot Alkaloids Posaconazole may increase the plasma concentrations of ergot alkaloids (ergotamine and dihydroergotamine) which may lead to ergotism [see Drug Interactions ( 7.4 )] .
4.6Use with Venetoclax Coadministration of posaconazole with venetoclax at initiation and during the ramp-up phase is contraindicated in patients with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) due to the potential for increased risk of tumor lysis syndrome [see Warnings and Precautions ( 5.10 ) and Drug Interactions ( 7.16 )].
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Calcineurin-Inhibitor Toxicity: Posaconazole increases concentrations of cyclosporine or tacrolimus; reduce dose of cyclosporine and tacrolimus and monitor concentrations frequently. ( 5.1 ) Arrhythmias and QTc Prolongation: Posaconazole has been shown to prolong the QTc interval and cause cases of TdP. Administer with caution to patients with potentially proarrhythmic conditions.
Do not administer with drugs known to prolong QTc interval and metabolized through CYP3A4. ( 5.2 ) Electrolyte Disturbances: Monitor and correct, especially those involving potassium (K + ), magnesium (Mg ++ ), and Calcium (Ca + ) before and during posaconazole therapy. ( 5.3 ) Hepatic Toxicity: Elevations in liver tests may occur.
Discontinuation should be considered in patients who develop abnormal liver tests or monitor liver tests during treatment. ( 5.4 ) Concomitant Use with Midazolam: Posaconazole can prolong hypnotic/sedative effects. Monitor patients and benzodiazepine receptor antagonists should be available.
( 5.6 , 7.5 ) Vincristine Toxicity: Concomitant administration of azole antifungals, including posaconazole, with vincristine has been associated with neurotoxicity and other serious adverse reactions; reserve azole antifungals, including posaconazole, for patients receiving a vinca alkaloid, including vincristine, who have no alternative antifungal treatment options. ( 5.7 , 7.10 ) Breakthrough Fungal Infections: Monitor patients with severe diarrhea or vomiting when receiving posaconazole delayed-release tablets. ( 5.9 ) Venetoclax Toxicity: Concomitant administration of posaconazole with venetoclax may increase venetoclax toxicities, including the risk of tumor lysis syndrome, neutropenia, and serious infections; monitor for toxicity and reduce venetoclax dose.
( 4.6 , 5.10 , 7.16 )
5.1Calcineurin-Inhibitor Toxicity Concomitant administration of posaconazole with cyclosporine or tacrolimus increases the whole blood trough concentrations of these calcineurin-inhibitors [see Drug Interactions ( 7.1 ) and Clinical Pharmacology ( 12.3 )] . Nephrotoxicity and leukoencephalopathy (including deaths) have been reported in clinical efficacy studies in patients with elevated cyclosporine or tacrolimus concentrations. Frequent monitoring of tacrolimus or cyclosporine whole blood trough concentrations should be performed during and at discontinuation of posaconazole treatment and the tacrolimus or cyclosporine dose adjusted accordingly.
5.2Arrhythmias and QT Prolongation Some azoles, including posaconazole, have been associated with prolongation of the QT interval on the electrocardiogram. In addition, cases of torsades de pointes have been reported in patients taking posaconazole. Results from a multiple time-matched ECG analysis in healthy volunteers did not show any increase in the mean of the QTc interval.
Multiple, time-matched ECGs collected over a 12-hour period were recorded at baseline and steady-state from 173 healthy male and female volunteers (18 to 85 years of age) administered posaconazole oral suspension 400 mg twice daily with a high-fat meal. In this pooled analysis, the mean QTc (Fridericia) interval change from baseline was –5 msec following administration of the recommended clinical dose. A decrease in the QTc(F) interval (–3 msec) was also observed in a small number of subjects (n=16) administered placebo.
The placebo-adjusted mean maximum QTc(F) interval change from baseline was <0 msec (–8 msec). No healthy subject administered posaconazole had a QTc(F) interval ≥500 msec or an increase ≥60 msec in their QTc(F) interval from baseline. Posaconazole should be administered with caution to patients with potentially proarrhythmic conditions.
Do not administer with drugs that are known to prolong the QTc interval and are metabolized through CYP3A4 [see Contraindications ( 4.3 ) and Drug Interactions ( 7.2 )] .
5.3Electrolyte Disturbances Electrolyte disturbances, especially those involving potassiu…
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The following serious and otherwise important adverse reactions are discussed in detail in another section of the labeling: Hypersensitivity [see Contraindications ( 4.1 )] Arrhythmias and QT Prolongation [see Warnings and Precautions ( 5.2 )] Hepatic Toxicity [see Warnings and Precautions ( 5.4 )] Adult Patients : Common adverse reactions in studies with posaconazole in adults are diarrhea, nausea, fever, vomiting, headache, coughing, and hypokalemia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Chartwell RX, LLC at 1-845-232-1683 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .
( 6 )
6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in clinical trials of posaconazole cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Clinical Trial Experience in Adults Clinical Trial Experience with Posaconazole Delayed-Release Tablets for Prophylaxis The safety of posaconazole delayed-release tablets has been assessed in 230 patients in clinical trials.
Patients were enrolled in a non-comparative pharmacokinetic and safety trial of posaconazole delayed-release tablets when given as antifungal prophylaxis (Posaconazole Delayed-Release Tablet Study). Patients were immunocompromised with underlying conditions including hematological malignancy, neutropenia post-chemotherapy, GVHD, and post HSCT. This patient population was 62% male, had a mean age of 51 years (range 19 to 78 years, 17% of patients were 65 years of age), and were 93% white and 16% Hispanic.
Posaconazole therapy was given for a median duration of 28 days. Twenty patients received 200 mg daily dose and 210 patients received 300 mg daily dose (following twice daily dosing on Day 1 in each cohort). Table 9 presents adverse reactions observed in patients treated with 300 mg daily dose at an incidence of ≥ 10% in Posaconazole Delayed-Release Tablet Study.
Table 9: Posaconazole Delayed-Release Tablet Study: Adverse Reactions in at Least 10% of Subjects Treated with 300 mg Daily Dose Body System Posaconazole delayed-release tablet (300 mg) n=210 (%) Subjects Reporting any Adverse Reaction 207 (99) Blood and Lymphatic System Disorder Anemia 22 (10) Thrombocytopenia 29 (14) Gastrointestinal Disorders Abdominal Pain 23 (11) Constipation 20 (10) Diarrhea 61 (29) Nausea 56 (27) Vomiting 28 (13) General Disorders and Administration Site Conditions Asthenia 20 (10) Chills 22 (10) Mucosal Inflammation 29 (14) Edema Peripheral 33 (16) Pyrexia 59 (28) Metabolism and Nutrition Disorders Hypokalemia 46 (22) Hypomagnesemia 20 (10) Nervous System Disorders Headache 30 (14) Respiratory, Thoracic and Mediastinal Disorders Cough 35 (17) Epistaxis 30 (14) Skin and Subcutaneous Tissue Disorders Rash 34 (16) Vascular Disorders Hypertension 23 (11) The most frequently reported adverse reactions (>25%) with posaconazole delayed-release tablets 300 mg once daily were diarrhea, pyrexia, and nausea.
The most common adverse reaction leading to discontinuation of posaconazole delayed-release tablets 300 mg once daily was nausea (2%). Additional Pediatric Use information is approved for Merck Sharp & Dohme Corp.’s NOXAFIL (posaconazole) delayed-release tablets. However, due to Merck Sharp & Dohme Corp.’s marketing exclusivity rights, this drug product is not labeled with that pediatric information.
6.2Postmarketing Experience The following adverse reaction has been identified during the post-approval use of posaconazole. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency. Endocrine Disorders: Pseudoaldosteronism
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Posaconazole is primarily metabolized via UDP glucuronosyltransferase and is a substrate of p glycoprotein (P-gp) efflux. Therefore, inhibitors or inducers of these clearance pathways may affect posaconazole plasma concentrations. Coadministration of drugs that can decrease the plasma concentrations of posaconazole should generally be avoided unless the benefit outweighs the risk.
If such drugs are necessary, patients should be monitored closely for breakthrough fungal infections. Posaconazole is also a strong inhibitor of CYP3A4. Therefore, plasma concentrations of drugs predominantly metabolized by CYP3A4 may be increased by posaconazole [see Clinical Pharmacology ( 12.3 )] .
The following information was derived from data with posaconazole oral suspension or early tablet formulation unless otherwise noted. All drug interactions with posaconazole oral suspension, except for those that affect the absorption of posaconazole (via gastric pH and motility), are considered relevant to posaconazole delayed-release tablet as well [see Drug Interactions ( 7.9 ) and ( 7.13 )] . Interaction Drug Interaction Rifabutin, phenytoin, efavirenz, cimetidine Avoid coadministration unless the benefit outweighs the risks ( 7.6 , 7.7 , 7.8 , 7.9 ) Other drugs metabolized by CYP3A4 Consider dosage adjustment and monitor for adverse effects and toxicity ( 7.1 , 7.10 , 7.11 ) Digoxin Monitor digoxin plasma concentrations ( 7.12 ) Fosamprenavir Monitor for breakthrough fungal infections ( 7.6 , 7.13 )
7.1Immunosuppressants Metabolized by CYP3A4 Sirolimus: Concomitant administration of posaconazole with sirolimus increases the sirolimus blood concentrations by approximately 9-fold and can result in sirolimus toxicity. Therefore, posaconazole is contraindicated with sirolimus [see Contraindications ( 4.2 ) and Clinical Pharmacology ( 12.3 )] . Tacrolimus: Posaconazole has been shown to significantly increase the Cmax and AUC of tacrolimus.
At initiation of posaconazole treatment, reduce the tacrolimus dose to approximately one-third of the original dose. Frequent monitoring of tacrolimus whole blood trough concentrations should be performed during and at discontinuation of posaconazole treatment and the tacrolimus dose adjusted accordingly [see Warnings and Precautions ( 5.1 ) and Clinical Pharmacology ( 12.3 )] . Cyclosporine: Posaconazole has been shown to increase cyclosporine whole blood concentrations in heart transplant patients upon initiation of posaconazole treatment.
It is recommended to reduce cyclosporine dose to approximately three-fourths of the original dose upon initiation of posaconazole treatment. Frequent monitoring of cyclosporine whole blood trough concentrations should be performed during and at discontinuation of posaconazole treatment and the cyclosporine dose adjusted accordingly [see Warnings and Precautions ( 5.1 ) and Clinical Pharmacology ( 12.3 )] .
7.2CYP3A4 Substrates Concomitant administration of posaconazole with CYP3A4 substrates such as pimozide and quinidine may result in increased plasma concentrations of these drugs, leading to QTc prolongation and cases of torsades de pointes. Therefore, posaconazole is contraindicated with these drugs [see Contraindications ( 4.3 ) and Warnings and Precautions ( 5.2 )] .
7.3HMG-CoA Reductase Inhibitors (Statins) Primarily Metabolized Through CYP3A4 Concomitant administration of posaconazole with simvastatin increases the simvastatin plasma concentrations by approximately 10-fold. Therefore, posaconazole is contraindicated with HMG-CoA reductase inhibitors primarily metabolized through CYP3A4 [see Contraindications ( 4.4 ) and Clinical Pharmacology ( 12.3 )] .
7.4Ergot Alkaloids Most of the ergot alkaloids are substrates of CYP3A4. Posaconazole may increase the plasma concentrations of ergot alkaloids (ergotamine and dihydroergotamine) which may lead to ergotism. Therefore, posaconazole is contraindicated with ergot alkaloids [see Contraindications ( 4.5…
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS Pregnancy: Based on animal data, may cause fetal harm. ( 8.1 ) Pediatrics: Safety and effectiveness in patients younger than 2 years of age have not been established. ( 8.4 ) Severe Renal Impairment: Monitor closely for breakthrough fungal infections.
( 8.6 ) Additional Pediatric Use information is approved for Merck Sharp & Dohme Corp.’s NOXAFIL (posaconazole) delayed-release tablets. However, due to Merck Sharp & Dohme Corp.’s marketing exclusivity rights, this drug product is not labeled with that pediatric information. ( 8 )
8.1Pregnancy Risk Summary Based on findings from animal data, posaconazole may cause fetal harm when administered to pregnant women. Available data for use of posaconazole in pregnant women are insufficient to establish a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. In animal reproduction studies, skeletal malformations (cranial malformations and missing ribs) and maternal toxicity (reduced food consumption and reduced body weight gain) were observed when posaconazole was dosed orally to pregnant rats during organogenesis at doses ≥1.4 times the 400 mg twice daily oral suspension regimen based on steady-state plasma concentrations of posaconazole in healthy volunteers.
In pregnant rabbits dosed orally during organogenesis, increased resorptions, reduced litter size, and reduced body weight gain of females were seen at doses 5 times the exposure achieved with the 400 mg twice daily oral suspension regimen. Doses of ≥ 3 times the clinical exposure caused an increase in resorptions in these rabbits (see Data). Based on animal data, advise pregnant women of the potential risk to a fetus.
The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively.
Data Animal Data Posaconazole resulted in maternal toxicity (reduced food consumption and reduced body weight gain) and skeletal malformations (cranial malformations and missing ribs) when given orally to pregnant rats during organogenesis (Gestational Days 6 through 15) at doses ≥27 mg/kg (≥1.4 times the 400 mg twice daily oral suspension regimen based on steady-state plasma concentrations of drug in healthy volunteers). The no-effect dose for malformations and maternal toxicity in rats was 9 mg/kg, which is 0.7 times the exposure achieved with the 400 mg twice daily oral suspension regimen.
No malformations were seen in rabbits dosed during organogenesis (Gestational Days 7 through 19) at doses up to 80 mg/kg (5 times the exposure achieved with the 400 mg twice daily oral suspension regimen). In the rabbit, the no-effect dose was 20 mg/kg, while high doses of 40 mg/kg and 80 mg/kg (3 or 5 times the clinical exposure) caused an increase in resorptions. In rabbits dosed at 80 mg/kg, a reduction in body weight gain of females and a reduction in litter size were seen.
8.2Lactation Risk Summary There are no data on the presence of posaconazole in human milk, the effects on the breastfed infant, or the effects on milk production. Posaconazole is excreted in the milk of lactating rats. When a drug is present in animal milk, it is likely that the drug will be present in human milk.
The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for posaconazole and any potential adverse effects on the breastfed child from posaconazole or from the underlying maternal condition.
8.4Pediatric Use The safety and effectiveness of posaconazole delayed-release tablets for the prophylaxis of invasive Aspergillus and Candida infections has been established in pediatric patients aged 13 years and older who are at high risk of developing…
🆘 Overdosage ▾
10 OVERDOSAGE There is no experience with overdosage of posaconazole delayed-release tablets. During the clinical trials, some patients received posaconazole oral suspension up to 1,600 mg/day with no adverse reactions noted that were different from the lower doses. In addition, accidental overdose was noted in one patient who took 1,200 mg twice daily posaconazole oral suspension for 3 days.
No related adverse reactions were noted by the investigator. Posaconazole is not removed by hemodialysis.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Posaconazole is an azole antifungal agent [see Clinical Pharmacology ( 12.4 )] .
12.2Pharmacodynamics Exposure Response Relationship Prophylaxis: In clinical studies of neutropenic patients who were receiving cytotoxic chemotherapy for acute myelogenous leukemia (AML) or myelodysplastic syndromes (MDS) or hematopoietic stem cell transplant (HSCT) recipients with Graft versus Host Disease (GVHD), a wide range of plasma exposures to posaconazole was noted following administration of posaconazole oral suspension. A pharmacokinetic-pharmacodynamic analysis of patient data revealed an apparent association between average posaconazole concentrations (C avg ) and prophylactic efficacy ( Table 17 ).
A lower C avg may be associated with an increased risk of treatment failure, defined as treatment discontinuation, use of empiric systemic antifungal therapy (SAF), or occurrence of breakthrough invasive fungal infections. Table 17: Posaconazole Oral Suspension Exposure Analysis (C avg ) in Prophylaxis Trials Prophylaxis in AML/MDS* Prophylaxis in GVHD † C avg Range (ng/mL) Treatment Failure ‡ (%) C avg Range (ng/mL) Treatment Failure ‡ (%) Quartile 1 90 to 322 54.7 22 to 557
44.4Quartile 2 322 to 490 37.0 557 to 915
20.6Quartile 3 490 to 734 46.8 915 to 1,563
17.5Quartile 4 734 to 2,200 27.8 1,563 to 3,650
17.5C avg = the average posaconazole concentration when measured at steady state * Neutropenic patients who were receiving cytotoxic chemotherapy for AML or MDS † HSCT recipients with GVHD ‡ Defined as treatment discontinuation, use of empiric systemic antifungal therapy (SAF), or occurrence of breakthrough invasive fungal infections
12.3Pharmacokinetics General Pharmacokinetic Characteristics Posaconazole delayed-release tablets exhibit dose proportional pharmacokinetics after single and multiple dosing up to 300 mg. The mean pharmacokinetic parameters of posaconazole at steady state following administration of posaconazole delayed-release tablets 300 mg twice daily on Day 1, then 300 mg once daily thereafter in healthy volunteers and in neutropenic patients who are receiving cytotoxic chemotherapy for AML or MDS or HSCT recipients with GVHD are shown in Table 20 .
Table 20: Arithmetic Mean (%CV) of Steady State PK Parameters in Healthy Volunteers and Patients Following Administration of Posaconazole Delayed-Release Tablets (300 mg)* N AUC 0-24 hr (ng∙hr/mL) C av† (ng/mL) C max (ng/mL) C min (ng/mL) T max‡ (hr) t 1/2 (hr) CL/F (L/hr) Healthy Volunteers 12 51,618 (25) 2,151 (25) 2,764 (21) 1,785 (29) 4 (3 to 6) 31 (40) 7.5 (26) Patients 50 37,900 (42) 1,580 (42) 2,090 (38) 1,310 (50) 4 (1.3 to 8.3) - 9.39 (45) CV = coefficient of variation expressed as a percentage (%CV); AUC 0-T = Area under the plasma concentration-time curve from time zero to 24 hr; C max = maximum observed concentration; C min = minimum observed plasma concentration; T max = time of maximum observed concentration; t ½ = terminal phase half-life; CL /F = Apparent total body clearance * 300 mg twice daily on Day 1, then 300 mg once daily thereafter † Cav = time-averaged concentrations (i.e., AUC 0-24 hr /24hr) ‡ Median (minimum-maximum) Absorption: When given orally in healthy volunteers, posaconazole delayed-release tablets are absorbed with a median T max of 4 to 5 hours.
Steady-state plasma concentrations are attained by Day 6 at the 300 mg dose (once daily after twice daily loading dose at Day 1). The absolute bioavailability of the oral delayed-release tablet is approximately 54% under fasted conditions. The Cmax and AUC of posaconazole following administration of posaconazole delayed-release tablets is increased 16% and 51%, respectively, when given with a high fat meal compared to a fasted state (see Table 22 ).
Table 22: Statistical Comparison of Plasma Pharmacokinetics of Posaconazole Following Single Oral Dose Administration of 300 mg Posaconazole Delayed-Release Tablet to Healthy Subjects under Fasting…
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING
16.1How Supplied Posaconazole delayed-release tablets are available as yellow, coated, oblong tablets, debossed with “100” on one side containing 100 mg of posaconazole. Bottles with child-resistant closures of 60 delayed-release tablets (NDC 62135-429-60).
16.2Storage and Handling Store at 20° to 25°C (68° to 77°F), excursions permitted to 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature].
📋 Description ▾
11 DESCRIPTION Posaconazole is an azole antifungal agent. Posaconazole is available as delayed-release tablet intended for oral administration. Posaconazole is designated chemically as 4-[4-[4-[4-[[ (3 R ,5 R )-5- (2,4-difluorophenyl)tetrahydro-5- (1 H -1,2,4-triazol-1-ylmethyl)-3-furanyl]methoxy]phenyl]-1-piperazinyl]phenyl]-2-[(1 S ,2 S )-1-ethyl-2-hydroxypropyl]-2,4-dihydro-3 H -1,2,4-triazol-3-one with an empirical formula of C 37 H 42 F 2 N 8 O 4 and a molecular weight of 700.8.
The chemical structure is: Posaconazole is a white powder with a low aqueous solubility. Posaconazole delayed-release tablet is a yellow, coated, oblong tablet, debossed with “100” on one side containing 100 mg of posaconazole. Each delayed-release tablet contains the inactive ingredients: hypromellose acetate succinate, microcrystalline cellulose, hydroxypropylcellulose, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, polyvinyl alcohol partially hydrolyzed, titanium dioxide, macrogol/polyethylene glycol 3350, talc and iron oxide yellow. image description
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Patient Information). Important Administration Instructions Advise patients that posaconazole delayed-release tablets must be swallowed whole and not divided, crushed, or chewed. Instruct patients that if they miss a dose, they should take it as soon as they remember.
If they do not remember until it is within 12 hours of the next dose, they should be instructed to skip the missed dose and go back to the regular schedule. Patients should not double their next dose or take more than the prescribed dose. Drug Interactions Advise patients to inform their physician immediately if they: develop severe diarrhea or vomiting. are currently taking drugs that are known to prolong the QTc interval and are metabolized through CYP3A4. are currently taking a cyclosporine or tacrolimus, or they notice swelling in an arm or leg or shortness of breath. are taking other drugs or before they begin taking other drugs as certain drugs can decrease or increase the plasma concentrations of posaconazole.
Serious and Potentially Serious Adverse Reactions Advise patients to inform their physician immediately if they: notice a change in heart rate or heart rhythm, or have a heart condition or circulatory disease. Posaconazole can be administered with caution to patients with potentially proarrhythmic conditions. are pregnant, plan to become pregnant, or are nursing. have liver disease or develop itching, nausea or vomiting, their eyes or skin turn yellow, they feel more tired than usual or feel like they have the flu. have ever had an allergic reaction to other antifungal medicines such as ketoconazole, fluconazole, itraconazole, or voriconazole.
Manufactured for: Chartwell RX, LLC Congers, NY 10920 The trademarks referenced herein are owned by their respective companies. L71130 Rev. 12/2022 Print Patient Information at: www.chartwellpharma.com/our-products/