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WAYRILZ rilzabrutinib 400 mg Tablet, Film Coated

by Genzyme Corporation · 2 BLISTER PACK in 1 CARTON (58468-0251-5) / 28 TABLET, FILM COATED in 1 BLISTER PACK (58468-0251-0)
NDC 58468-0251-05
🏷️ FDA NDC (as labeled) 58468-0251-5 billing pads the package segment with a zero
This package
Contains28 tablet, film coated in 1 blister pack Pack sizes2 compare ↓
Also priced by: Part D plans $278.41/unit — full pricing hub ↓
Also comes in: 60 tablets 58468-0251-06
Rx only Brand On market Non-controlled
🗂️ Data synced Jul 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

🆔 Identity & classification

FDA NDC (as labeled) 58468-0251-5
Product NDC 58468-0251
11-digit billing NDC 58468025105
NCPDP billing unit EA — each (per item)
RxCUI 2722403, 2722409
UNII NWN58M4F5T
Application # NDA219685
SPL Set ID 95ffd367-9b0c-4f75-8487-5d8f3c0a5ad0
Established class (EPC) Kinase Inhibitor
Mechanism of action Bruton's Tyrosine Kinase Inhibitors; Cytochrome P450 3A Inhibitors; P-Glycoprotein Inhibitors; Breast Cancer Resistance Protein Inhibitors; Organic Anion Transporting Polypeptide 1B1 Inhibitors; Organic Anion Transporting Polypeptide 1B3 Inhibitors; Bile Salt Export Pump Inhibitors
DEA schedule Non-controlled
Marketing category NDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2025-08-29
Route ORAL
Dosage form TABLET, FILM COATED
Substance RILZABRUTINIB
GPI-14 85752050000340
GCN Seq No 088194
GCN 58292
HICL code 050857
Ingredient (HICL) Rilzabrutinib
HIC1 code Z
Therapeutic class — broad (HIC1) Body As A Whole
HIC2 code Z2
Therapeutic class — intermediate (HIC2) Antihistamines, Antiserotonins, Immunosuppressants
HIC3 code Z24
Therapeutic class — specific (HIC3) Spleen/Bruton's Tyrosine Kinase Inhibitors
AHFS code 20:92.00.00
AHFS class Blood Form.,Coag,Thrombosis Agents Misc.
FDB label name WAYRILZ 400 MG TABLET
FDB brand name Wayrilz
Legend status F — Federal legend — prescription drug or device
Why two NDCs? The FDA registers this code as 58468-0251-5 — a 5-4-1 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the package segment → 58468-0251-05. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

🏷️ RxNorm drug class

This medicine belongs to the Kinase Inhibitor class.

Pharmacologic class Kinase Inhibitor
How it works P-Glycoprotein Inhibitors, Organic Anion Transporting Polypeptide 1B1 Inhibitors, Organic Anion Transporting Polypeptide 1B3 Inhibitors, Breast Cancer Resistance Protein Inhibitors
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

🏭 Manufacturer & labeler

LabelerGenzyme Corporation
Application holderGENZYME CORP
FDA applicationNDA219685 (NDA)
Labeler code58468
First marketedAug 2025
Product typeHuman Prescription Drug
Portfolio33 products on file
The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

🩺 Clinical

Label name WAYRILZ 400 MG TABLET Ingredient Rilzabrutinib
📖 What it is MedlinePlus · NLM

Rilzabrutinib is used to treat immune thrombocytopenia (ITP; an ongoing condition that may cause unusual bruising or bleeding due to an abnormally low number of platelets in the blood). Rilzabrutinib is in a class of medications called kinase inhibitors. It works by reducing platelet destruction.

Read the full MedlinePlus article ↗

Supplement & herbal interactions

🌿 Drug–supplement interaction checker →
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

💊 What it looks like

Color Orange
ShapeOval
ImprintP;400
Size17 mm
ScoringNot scored
One label can cover several strengths, so colors may be combined — always confirm a loose pill against the dispensed prescription label or a pharmacist.
Where does this data come from?
Physical description (imprint, shape, color, scoring, coating) from this product’s FDA Structured Product Labeling (SPL), mirrored from DailyMed / openFDA.

🧪 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.

  • UNII 2S7830E561
    Crospovidone is a synthetic polymer derived from povidone. It acts as a disintegrant, helping the tablet or capsule break apart quickly in the stomach so the active ingredient can be absorbed.
  • UNII H77VEI93A8
    A synthetic yellow dye used to color medications. It helps identify the drug and make it visually distinctive, with no effect on how the medicine works.
  • 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.
  • UNII 3WJQ0SDW1A
    Polyethylene glycol is a synthetic liquid or solid polymer used in medicines as a solvent, lubricant, and humectant. It helps dissolve active ingredients, reduces friction during manufacturing, and retains moisture in the final product.
  • 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.
  • UNII 7CV7WJK4UI
    Sodium stearyl fumarate is a synthetic compound made from stearyl alcohol and fumaric acid. It acts as a lubricant and glidant in tablets and capsules, helping ingredients flow smoothly during manufacturing and preventing sticking.
  • 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.
  • 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.

8 inactive ingredients listed in the exact product block matched to this NDC.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMed — 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

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

💲 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 systemPer eachPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
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 $278.41 $15,590.80 / 56 tablets
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

🔁 Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Wayrilz 400 mgthis 58468-0251-05 Genzyme 28 tablets — — FDA listed —
About this product: this is the brand-name version. We did not find an FDA-approved generic match for this exact strength, form and route.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

⏳ Availability & generic status

🏛️
2025
First FDA approval
Aug 2025
📍
2026
Currently FDA-listed
1 year listed
🛡️
2041
Latest patent/protection listed
not a guaranteed launch date
🔒No FDA-approved generic found

We did not find an FDA-approved generic match for this exact strength, form and route. Patent/protection dates below may affect future generic timing.

🛡️ Latest patent/protection date listed: FDA patent/protection data lists protections through Feb 2041. This may affect when a full generic version becomes widely available, but it is not a guaranteed launch date.
📅 FDA approved Aug 29, 2025 RLD RS ⏳ ~14.4 yr to latest listed protection

Why the date isn’t exact: Generic timing can change because patents may be challenged, settled, licensed, added, removed, or worked around with a narrower label — and FDA approval does not always mean a pharmacy can get the generic today.

Patents & exclusivity — FDA Orange Book
US 12178818 — method of use (U-4267)
US 9994576 — drug substance (U-4268)
US 9994576 — drug substance (U-4269)
US 9266895 — drug substance (U-4268)
US 8940744 — drug substance (U-4270)
US 11708370 — drug substance
US 9580427 — drug substance
Exclusivity NCE
Exclusivity ODE-552
2025 2027 2029 2031 2033 2035 2037 2039 2041
Today
LOE
Substance patent Formulation patent Method-of-use patent Exclusivity Pediatric +6mo
🏛️FDA exclusivity
FDA-granted marketing protection. It’s separate from patents and may be shorter than patent protection.
🧪Product / substance patents
Patents covering the active ingredient, product, formulation, or related drug features.
🎯Method-of-use patents
Patents covering specific approved uses. These can sometimes be carved out with a “skinny label,” but not always.
🛈 What do these terms mean?
Patent
Legal protection listed in the Orange Book that may delay generic approval or launch. Issued by the U.S. Patent & Trademark Office.
Substance patent
Covers the active drug molecule itself — the hardest to design around. A generic generally can’t launch until it expires.
Formulation (product) patent
Covers a specific formulation or dosage form. A generic can sometimes work around it with a different formulation.
Method-of-use patent
A patent covering one specific approved use of the drug — not necessarily the whole molecule. A generic can sometimes launch with a “skinny label” that carves out the protected use and keeps the others.
Skinny label
A generic label that omits a still-patented use when the FDA allows it — letting a generic reach the market for the unprotected uses.
Exclusivity
FDA-granted marketing protection, separate from patents — e.g. 5-yr new chemical entity, 7-yr orphan drug, or a +6-month pediatric extension.
Paragraph IV
A generic applicant’s formal challenge to a listed patent. It can potentially lead to earlier generic entry, but often involves litigation or a settlement.
RLD / RS
Reference Listed Drug — the brand product the FDA uses as the reference for generic applications. Reference Standard — the product the FDA expects generics to compare against in bioequivalence testing.
TE / AB rating
FDA therapeutic-equivalence rating. An AB rating generally means the FDA considers a generic therapeutically equivalent to — and substitutable for — the brand.
LOE (loss of exclusivity)
The latest patent or exclusivity currently listed — the loss-of-exclusivity / latest-listed-protection date shown on this page. Paragraph-IV challenges and settlements can move the real date earlier; FDA approval and a manufacturer’s decision to market can move it later.

Built from the FDA Orange Book. The bars above are scaled to each protection’s expiry; the red LOE marker is the last one to lapse.

Listed patents (7)
PatentTypeUse codeExpires
US 12178818 ↗ Method of use U-4267 Oct 13, 2040
US 9994576 ↗ Drug substance U-4268 Sep 6, 2033
US 9994576 ↗ Drug substance U-4269 Sep 6, 2033
US 9266895 ↗ Drug substance U-4268 Sep 6, 2033
US 8940744 ↗ Drug substance U-4270 Sep 6, 2033
US 11708370 ↗ Drug substance — Feb 20, 2041
US 9580427 ↗ Drug substance — Mar 1, 2033
FDA exclusivity
CodeWhat it grantsExpires
NCENew Chemical Entity (5-year)Aug 29, 2030
ODE-552Orphan Drug Exclusivity (7-year)Aug 29, 2032
Common questions
Is there a generic version of WAYRILZ 400 MG TABLET?
No FDA-approved generic equivalent is currently listed in the FDA Orange Book for WAYRILZ 400 MG TABLET. Based on the patents and exclusivity currently listed, the Orange Book estimate is that full-label generic entry may be delayed until Feb 2041 — an estimate, not a guaranteed launch date.
The FDA approved a generic — why can’t I get it at my pharmacy yet?
FDA approval and pharmacy availability are two different things. The FDA can approve a generic years before it actually reaches pharmacies, because the brand company may still hold patents or have a settlement that delays the launch. A manufacturer also has to choose to make and sell it, and have supply ready. So a drug can be “FDA-approved generic exists” and still be brand-only at the counter today.
Why do different websites show different generic release dates?
Generic availability is not based on one single date. Some sources use the first exclusivity expiration, some use the last product patent, and others use the latest method-of-use patent. Patent challenges, settlements, licenses, and label carve-outs can also change the real-world launch date. This page shows the underlying Orange Book dates so you can see why estimates may differ.
What does “FDA listed” mean?
It means the product appears in the FDA’s official NDC directory. That’s a good sign a product exists and is intended for the U.S. market, but on its own it does not confirm a pharmacy can fill it today. Where we have recent retail pricing data (NADAC) for a product, we label it “Availability likely” instead.
What does a patent or protection date mean here?
It’s the latest date currently listed in the FDA Orange Book for a patent or exclusivity on the brand product. It can affect when a full generic version becomes widely available — but it is not a guaranteed generic launch date. Generics sometimes arrive earlier (through a settlement or patent challenge) or later (a manufacturer still has to make and sell one).
What does “current Orange Book estimate” mean?
It means we are using the latest patent and exclusivity dates currently listed in the FDA Orange Book. It is not a guaranteed launch date.
Can a generic come out before the last patent expires?
Sometimes. A generic company may challenge a patent, settle with the brand manufacturer, receive a license, or obtain approval with a narrower label that avoids a patented use. In other cases, the last listed protection may delay full-label generic competition.
Can a generic come out after the listed dates?
Yes. Even after patents or exclusivity expire, a generic still needs FDA approval and a manufacturer must choose to market it. Supply, litigation, business decisions, or regulatory issues can delay actual availability.
What is the difference between patents and exclusivity?
Patents are legal protections usually issued by the U.S. Patent and Trademark Office. FDA exclusivity is marketing protection granted by the FDA. They are separate, and either one can affect generic timing.
Why are there multiple patent dates?
One drug can have several patents covering different things: the active ingredient, a formulation, a manufacturing process, or a specific approved use. That is why a page may show several expiration dates instead of one simple generic date.
Built from FDA Orange Book patent and exclusivity data. Dates are refreshed from public FDA data when available; the marker is max(latest patent expiry, latest exclusivity expiry). Paragraph-IV settlements and first-filer 180-day exclusivity can shift the real date; a method-of-use patent may allow an earlier skinny-label generic for non-protected indications. Generic launch timing is an estimate, not a guarantee.
Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

💊 Medicaid utilization by pack size

Medicaid (SDUD) totals over the four most recent reported quarters for every package size of this drug — handy when a specific package (e.g. a starter/titration pack) carries little or no Medicaid volume on its own.
60 tablets58468-0251-06 31 Rx · $542,821
28 tablets this page58468-0251-05 No Medicaid data
Drug total (last 4 qtrs): 31 Rx · 1,860 units · $542,821 gross reimbursed
Tap a pack size to open its page. Source: CMS State Drug Utilization Data, last 4 quarters.

📊 Medicare Part D spend CMS · PART D · 2026 (Q1)

Medicare Part D (outpatient prescription) spending for Wayrilz — the program that covers self-administered drugs. 1 manufacturer.
⚠️ Drug-level data: CMS publishes Part D spending by drug, not by NDC — these figures combine every manufacturer, strength and package size sold under the name Wayrilz. That’s a different level of aggregation than the Medicaid card above, which is specific to this exact 11-digit NDC (pack size included), so the two aren’t directly comparable.
Period
Total Part D spend
$6.02M
Claims incl. refills
352
Beneficiaries
169
Spend / beneficiary
$35,614.04
Spend / claim
$17,098.79
Trend by period
💵 About the dollar figures: spending is what Part D plans paid before confidential manufacturer rebates, so the program’s real net cost is lower. A blank patient count means fewer than 11 people — CMS hides counts that small to protect privacy. Source: CMS Medicare Quarterly Part D Spending by Drug (data.cms.gov), updated quarterly.

📦 Packaging — all sizes for this product

Package NDCDescription Marketing startStatus
58468-0251-05 You're viewing this 2 BLISTER PACK in 1 CARTON (58468-0251-5) / 28 TABLET, FILM COATED in 1 BLISTER PACK (58468-0251-0) 2025-08-29 Active
58468-0251-06 1 BOTTLE in 1 CARTON (58468-0251-6) / 60 TABLET, FILM COATED in 1 BOTTLE 2025-08-29 Active

Pack size FAQ

What quantity is in NDC 58468-0251-05?
NDC 58468-0251-05 is listed by the FDA — 2 blister pack in 1 carton / 28 tablet, film coated in 1 blister pack.
What NDC number is used to bill for this package of WAYRILZ rilzabrutinib 400 mg Tablet, Film Coated?
Bill NDC 58468-0251-05 — the 11-digit billing format is 58468025105. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

🧭 About this NDC listing & data coverage

Finished prescription product
What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) ✓ Available
Package photos — Not published for this NDC No photo available yet for this listing.
Inactive ingredients (structured) ✓ Available
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data ✓ Available
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The FDA registers it as 58468-0251-5, which is what is printed on the packaging and shown on DailyMed. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero: 58468-0251-05, written without dashes as 58468025105. The Identity section at the top of this page lists every form of this code.
What do the three segments of this NDC mean?
In 58468-0251-05, the first segment (58468) is the labeler code FDA assigned to Genzyme Corporation; the middle segment (0251) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (05) identifies this exact package size and type. Together they name one specific package of one specific product.
Is this package still being marketed?
Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by Genzyme Corporation. Listing status can change — the directory data on this page refreshes weekly.
Does this product come in other package sizes?
Yes — the FDA directory lists 1 other package presentation of this same product, including 60 tablets (58468-0251-06). Each has its own NDC and its own page — see the package list near the top of this page.
Who lists this product with the FDA?
Genzyme Corporation is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.

📄 Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage ⏱️ Dosage and Administration 💊 Dosage Forms and Strengths ⛔ Contraindications ⚠️ Warnings and Cautions 🤒 Adverse Reactions 🔄 Drug Interactions 👥 Use in Specific Populations 🤰 Pregnancy 🧒 Pediatric Use 🧓 Geriatric Use 🆘 Overdosage 🧬 Clinical Pharmacology 🧬 Mechanism of Action 📦 How Supplied / Storage and Handling 📦 Storage and Handling 📋 Description 💬 Information for Patients
🎯 Indications and Usage 62 words ▾

1 INDICATIONS AND USAGE WAYRILZ is indicated for the treatment of adult patients with persistent or chronic immune thrombocytopenia (ITP) who have had an insufficient response to a previous treatment. WAYRILZ is a kinase inhibitor indicated for the treatment of adult patients with persistent or chronic immune thrombocytopenia (ITP) who have had an insufficient response to a previous treatment. ( 1 )

⏱️ Dosage and Administration ~1 min read ▾

2 DOSAGE AND ADMINISTRATION See Full Prescribing Information for important recommendations prior to treatment. ( 2.1 , 2.3 ) Recommended dosage: 400 mg orally twice daily; swallow whole with water, with or without food. Do not cut, crush, or chew tablets. ( 2.2 )

2.1Recommended Testing Before Initiating WAYRILZ Verify pregnancy status of females of reproductive potential prior to initiating WAYRILZ treatment [see Warnings and Precautions (5.3) and Use in Specific Populations (8.1 , 8.3) ] .

2.2Recommended Dosage The recommended dosage of WAYRILZ is 400 mg taken orally twice daily. WAYRILZ can be taken at approximately the same time each day with or without food. In patients who experience gastrointestinal symptoms, taking WAYRILZ with food may improve tolerability.

Advise patients to swallow tablets whole with a glass of water. Advise patients not to cut, crush or chew the tablets. If a dose is missed, patients should take the missed dose of WAYRILZ as soon as possible on the same day and at least 2 hours apart from the next regular scheduled dose.

If taking antacid or histamine H2 receptor antagonist, administer the dose of WAYRILZ at least 2 hours before the antacid or histamine H2 receptor antagonist.

2.3Monitoring and Dose Modifications for Hepatotoxicity Evaluate bilirubin and transaminases at baseline and as clinically indicated during treatment with WAYRILZ. For patients who develop abnormal liver tests after WAYRILZ, monitor more frequently for liver test abnormalities and clinical signs and symptoms of hepatic toxicity. If Drug-Induced Liver Injury (DILI) is suspected, withhold WAYRILZ. Upon confirmation of DILI, discontinue WAYRILZ.

💊 Dosage Forms and Strengths 33 words ▾

3 DOSAGE FORMS AND STRENGTHS Tablets: Each 400 mg film-coated tablet is orange, capsule-shaped, and debossed with "P" on one side and "400" on the other side. Tablets: 400 mg ( 3 )

⛔ Contraindications 4 words ▾

4 CONTRAINDICATIONS None None

⚠️ Warnings and Cautions ~2 min read ▾

5 WARNINGS AND PRECAUTIONS Serious Infections: Monitor patients for signs and symptoms of infection, evaluate promptly, and treat. ( 5.1 ) Hepatotoxicity, Including Drug-Induced Liver Injury: Evaluate bilirubin and transaminases at baseline and as clinically indicated during treatment. ( 5.2 ) Embryo-Fetal Toxicity: Based on preliminary animal data, WAYRILZ may cause fetal harm.

Advise females of reproductive potential of the potential risk and to use effective contraception. ( 5.3 , 8.1 , 8.3 )

5.1Serious Infections An increased risk of serious infections (including bacterial, viral, or fungal) can occur in patients treated with Bruton's tyrosine kinase (BTK) inhibitors, including WAYRILZ. In the LUNA-3 trial, fatal pneumonia occurred in one participant in the WAYRILZ group. Other serious infections [one each (0.8%)] included COVID-19 infection, wound infection, and one patient experienced urinary tract infection and kidney abscess.

Monitor patients for signs and symptoms of infection and treat appropriately.

5.2Hepatotoxicity, Including Drug-Induced Liver Injury Hepatotoxicity, including severe, life-threatening, and potentially fatal cases of DILI, can occur in patients treated with BTK inhibitors. In the clinical trials of WAYRILZ in patients with ITP, elevations of liver transaminases occurred and were generally mild to moderate in severity. Evaluate bilirubin and transaminases at baseline and as clinically indicated during treatment with WAYRILZ.

For patients who develop abnormal liver tests after WAYRILZ, monitor more frequently for liver test abnormalities and clinical signs and symptoms of hepatic toxicity. If DILI is suspected, withhold WAYRILZ. Upon confirmation of DILI, discontinue WAYRILZ.

5.3Embryo-Fetal Toxicity Based on findings from preliminary animal reproduction studies, WAYRILZ may cause fetal harm when administered to a pregnant woman. Adverse visceral and skeletal findings occurred in rat fetuses at a maternally toxic dose at exposures 22-times the human exposure [based on area under the curve (AUC)] at the maximum recommended human dose (MRHD), and renal visceral malformations occurred in a single rabbit fetus at 5.6-times the human exposure (based on AUC) at the MRHD. Verify pregnancy status of females of reproductive potential prior to initiating WAYRILZ treatment.

Advise females of reproductive potential to use an effective method of contraception during treatment with WAYRILZ and for 1 week after the final dose [see Use in Specific Populations (8.1 , 8.3) ] .

🤒 Adverse Reactions ~2 min read ▾

6 ADVERSE REACTIONS The following clinically important adverse reactions are described elsewhere in the labeling: Serious Infections [see Warnings and Precautions (5.1) ] Hepatotoxicity, Including Drug-Induced Liver Injury [ see Warnings and Precautions (5.2) ] Most common adverse reactions (incidence ≥10%) were diarrhea, nausea, headache, abdominal pain, and COVID-19. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Genzyme Corporation at 1-800-633-1610 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1Clinical 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. The safety of WAYRILZ was evaluated in a randomized, double-blind (DB), placebo-controlled, parallel-group study (LUNA-3), in which 202 adult patients with persistent or chronic ITP received either WAYRILZ (n=133) or placebo (n=69) [see Clinical Studies (14) ] .

During the 24-week DB period, the median duration of WAYRILZ exposure was 98 days (range: 22 to 182). The most common adverse reactions (≥10%) were diarrhea, nausea, headache, abdominal pain, and COVID-19. Adverse reactions resulting in discontinuation of WAYRILZ included erythema nodosum, neutropenia, arthralgia, dyspepsia, headache, pain in extremity, abdominal discomfort, diarrhea, nausea, and pneumonia and occurred in 4.5% of patients.

Table 1 presents common adverse reactions from the LUNA-3 Study. Table 1: Common Adverse Reactions Adverse reactions that occurred in at least 5% of WAYRILZ treated patients and at least 3% higher than placebo-treated patients. in Patients with ITP During Double-Blind Period of the LUNA-3 Study Adverse Reactions WAYRILZ (N=133) Placebo (N=69) All Grades % Grade 3 or Higher % All Grades % Grade 3 or Higher % Diarrhea 32 0 10 0 Nausea 20 0 6 0 Headache 18 0 7 0 Abdominal Pain Grouped term 14 0 1 0 COVID-19 14 0.8 4 0 Arthralgia 9 0 4 0 Dizziness 8 0 1 0 Nasopharyngitis 7 0 3 0 Vomiting 7 0 1 0 Dyspepsia 5 0 0 0 Cough 5 0 0 0 Specific Adverse Reactions Gastrointestinal Events In the LUNA-3 Study DB period, the most common gastrointestinal (GI) adverse reactions were diarrhea (32%), nausea (20%), and abdominal pain (14%) in the WAYRILZ group.

These events were Grade 1 or 2. Of those who experienced GI adverse reactions, 2 patients discontinued due to GI adverse reactions. Recovery or resolution with supportive treatment allowing continuation of WAYRILZ treatment occurred in 91% of patients with diarrhea, 85% with nausea and 79% with abdominal pain.

Neutropenia In the LUNA-3 Study DB period, Grade 1 or 2 neutropenia occurred in 11% of patients in the WAYRILZ group.

🔄 Drug Interactions ~2 min read ▾

7 DRUG INTERACTIONS CYP3A Inhibitors: Avoid co-administration with moderate or strong CYP3A inhibitors. ( 7.1 ) CYP3A Inducers: Avoid co-administration with moderate or strong CYP3A inducers. ( 7.1 ) Gastric Acid Reducing Agents: Avoid co-administration with proton pump inhibitors (PPIs). WAYRILZ should be administered at least 2 hours before taking an antacid or H2 receptor antagonist. ( 7.1 )

7.1Effect of Other Drugs on WAYRILZ Strong and Moderate CYP3A Inhibitors Avoid concomitant use of WAYRILZ with strong or moderate CYP3A inhibitors. If a strong or moderate CYP3A inhibitor cannot be avoided, and these inhibitors will be used short term (such as anti-infectives for seven days or less), interrupt treatment with WAYRILZ. Avoid concomitant use of grapefruit, starfruit and products containing these fruits, and Seville oranges with WAYRILZ, as these are moderate and strong inhibitors of CYP3A.

Rilzabrutinib is a CYP3A substrate. Concomitant use with a strong or moderate CYP3A inhibitor increases rilzabrutinib C max and AUC [see Clinical Pharmacology (12.3) ] , which increases the risk of WAYRILZ adverse reactions. Strong and Moderate CYP3A Inducers Avoid concomitant use of WAYRILZ with strong or moderate CYP3A inducers.

Rilzabrutinib is a CYP3A substrate. Concomitant use with a strong or moderate CYP3A inducer decreases rilzabrutinib C max and AUC [see Clinical Pharmacology (12.3) ] , which may reduce WAYRILZ efficacy. Gastric Acid Reducing Agents Administer the dose of WAYRILZ at least 2 hours before administration of an antacid or histamine H2 receptor antagonist.

Avoid concomitant use of proton pump inhibitors with WAYRILZ. Rilzabrutinib exhibits pH-dependent solubility. Acid reducing agents decrease rilzabrutinib exposure [see Clinical Pharmacology (12.3) ] , which may reduce WAYRILZ efficacy.

7.2Effect of WAYRILZ on Other Drugs CYP3A Substrates Monitor for adverse reactions of the concurrently administered CYP3A substrate more frequently and consider dosage adjustment in accordance with the Prescribing Information of the CYP3A substrate. Rilzabrutinib is a moderate inhibitor of CYP3A and increases exposure of these substrates [see Clinical Pharmacology (12.3) ] , which increases the risk of adverse reactions related to these substrates. P-gp, BCRP, and OATP1B Substrates Monitor for adverse reactions of the concurrently administered P-gp, BCRP, or OATP1B substrate more frequently, unless otherwise recommended in the substrate Prescribing Information, when WAYRILZ is used concomitantly with P-gp, BCRP, or OATP1B substrates where minimal substrate concentration changes may lead to serious adverse reactions.

Rilzabrutinib is an inhibitor of P-gp, BCRP and OATP1B in vitro . The effect of concomitant use of WAYRILZ with OATP1B and BCRP substrates has not been established in clinical studies. However, based on in vitro inhibitory potential [see Clinical Pharmacology (12.3) ] , concomitant use of WAYRILZ may increase the risk of adverse reactions related to these substrates.

👥 Use in Specific Populations ~3 min read ▾

8 USE IN SPECIFIC POPULATIONS Lactation: Advise not to breastfeed. ( 8.2 ) Hepatic Impairment: Avoid use of WAYRILZ in patients with moderate or severe hepatic impairment. ( 8.6 ) Renal Impairment: Avoid use in patients with severe renal impairment. ( 8.7 )

8.1Pregnancy Risk Summary Based on animal data, WAYRILZ may cause fetal harm when administered to a pregnant woman. In animal reproduction studies, oral administration of rilzabrutinib to pregnant rats and rabbits during organogenesis at exposures 4- to 10-times the human exposure (based on AUC) at the maximum recommended human dose (MRHD) of 400 mg twice daily did not cause adverse developmental effects. However, adverse visceral and skeletal findings occurred in rat fetuses at a maternally toxic dose at exposures 22-times the human exposure (based on AUC) at the MRHD ( see Data ).

There are no available clinical data on the use of WAYRILZ during pregnancy to evaluate for a drug-associated risk of major birth defects, miscarriage, or other adverse maternal or fetal outcomes. Advise pregnant women of the potential risk to a fetus. The background risk of major birth defects and miscarriage for the indicated population is unknown.

All pregnancies have a background risk of birth defects, loss, and 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 Rilzabrutinib given to pregnant rats by oral gavage at 50, 150 or 300 mg/kg/day during the period of organogenesis (gestation day 7 to 17) did not cause adverse effects on embryo-fetal development at exposures approximately 10-times the clinical exposure at the maximum recommended human dose (MRHD), based on AUC.

Increased incidence of post-implantation loss (25%), delayed ossification associated with a markedly lower (24%) mean fetal weight, and increased skeletal (scoliosis) and visceral malformations (abnormalities of major vessels, urogenital tract, and kidney) occurred in a preliminary study in rats at a maternally toxic dose of 500 mg/kg/day that resulted in exposures 22-times the clinical exposure at the MRHD, based on AUC. Rilzabrutinib given to pregnant rabbits by oral gavage at 10, 30 or 100 mg/kg/day during the period of organogenesis (gestation day 7 to 19) did not cause adverse effects on embryo-fetal development at exposures approximately 4-times the clinical exposures at the MRHD, based on AUC.

Renal visceral malformations occurred in a single fetus in a preliminary study in rabbits at 150 mg/kg/day that resulted in exposures 5.6-times the clinical exposure at the MRHD, based on AUC. In a pre- and postnatal developmental toxicity study, pregnant rats were given rilzabrutinib by oral gavage at doses of 50, 150 or 300 mg/kg/day during the periods of gestation, parturition, and lactation (gestation day 7 to lactation day 21). Decreased body weight was observed in pups in the presence of maternal toxicity at 300 mg/kg/day, at exposures approximately 18-times the MRHD based on AUC.

There were no effects of rilzabrutinib on the ability of F1 offspring to reproduce or on subsequent F2 development at any dose.

8.2Lactation Risk Summary There are no data on the presence of rilzabrutinib or its metabolites in either human or animal milk, the effects on the breastfed child, or the effects on milk production. Due to the potential for adverse reactions in a breastfed child from WAYRILZ, advise lactating women not to breastfeed while taking WAYRILZ and for at least 1 week after the final dose.

8.3Females and Males of Reproductive Potential Based on preliminary animal data, WAYRILZ may cause fetal harm when administered to pregnant women [see Use in Specific Populations (8.1) ] . Pregnancy Testing Verify pregnancy status of females of reproductive potential prior to initiating WAYRILZ treatment. Contraception Females Advise female patients of reproductive potentia…

🤰 Pregnancy ~2 min read ▾

8.1Pregnancy Risk Summary Based on animal data, WAYRILZ may cause fetal harm when administered to a pregnant woman. In animal reproduction studies, oral administration of rilzabrutinib to pregnant rats and rabbits during organogenesis at exposures 4- to 10-times the human exposure (based on AUC) at the maximum recommended human dose (MRHD) of 400 mg twice daily did not cause adverse developmental effects. However, adverse visceral and skeletal findings occurred in rat fetuses at a maternally toxic dose at exposures 22-times the human exposure (based on AUC) at the MRHD ( see Data ).

There are no available clinical data on the use of WAYRILZ during pregnancy to evaluate for a drug-associated risk of major birth defects, miscarriage, or other adverse maternal or fetal outcomes. Advise pregnant women of the potential risk to a fetus. The background risk of major birth defects and miscarriage for the indicated population is unknown.

All pregnancies have a background risk of birth defects, loss, and 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 Rilzabrutinib given to pregnant rats by oral gavage at 50, 150 or 300 mg/kg/day during the period of organogenesis (gestation day 7 to 17) did not cause adverse effects on embryo-fetal development at exposures approximately 10-times the clinical exposure at the maximum recommended human dose (MRHD), based on AUC.

Increased incidence of post-implantation loss (25%), delayed ossification associated with a markedly lower (24%) mean fetal weight, and increased skeletal (scoliosis) and visceral malformations (abnormalities of major vessels, urogenital tract, and kidney) occurred in a preliminary study in rats at a maternally toxic dose of 500 mg/kg/day that resulted in exposures 22-times the clinical exposure at the MRHD, based on AUC. Rilzabrutinib given to pregnant rabbits by oral gavage at 10, 30 or 100 mg/kg/day during the period of organogenesis (gestation day 7 to 19) did not cause adverse effects on embryo-fetal development at exposures approximately 4-times the clinical exposures at the MRHD, based on AUC.

Renal visceral malformations occurred in a single fetus in a preliminary study in rabbits at 150 mg/kg/day that resulted in exposures 5.6-times the clinical exposure at the MRHD, based on AUC. In a pre- and postnatal developmental toxicity study, pregnant rats were given rilzabrutinib by oral gavage at doses of 50, 150 or 300 mg/kg/day during the periods of gestation, parturition, and lactation (gestation day 7 to lactation day 21). Decreased body weight was observed in pups in the presence of maternal toxicity at 300 mg/kg/day, at exposures approximately 18-times the MRHD based on AUC.

There were no effects of rilzabrutinib on the ability of F1 offspring to reproduce or on subsequent F2 development at any dose.

🧒 Pediatric Use 15 words ▾

8.4Pediatric Use Safety and effectiveness of WAYRILZ have not been established in pediatric patients.

🧓 Geriatric Use 59 words ▾

8.5Geriatric Use Of the 202 patients in the LUNA-3 study [see Clinical Studies (14) ] , 36 (18%) patients were 65 years of age and older, and 9 (5%) patients were 75 years of age and older. No overall differences in safety and efficacy were observed between patients 65 years of age and older and younger adult patients.

🆘 Overdosage 41 words ▾

10 OVERDOSAGE In the event of overdosage, closely monitor the patient for any signs or symptoms of adverse reactions and institute appropriate symptomatic treatment immediately. Consider contacting the Poison Help line (1-800-222-1222) or a medical toxicologist for additional overdose management recommendations.

🧬 Clinical Pharmacology ~3 min read ▾

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Rilzabrutinib is a small-molecule, covalent, reversible kinase inhibitor targeting Bruton's tyrosine kinase (BTK). Rilzabrutinib mediates its therapeutic effect in ITP through immune modulation including 1) inhibition of B cell activation, and 2) interruption of antibody-coated cell phagocytosis by Fcγ receptor (FcγR) in spleen and liver. In vitro , rilzabrutinib reduced autoantibody signaling mediated through the FcγR pathway, blocked B cell signaling, and decreased autoantibody generation through effects on B cell activation.

12.2Pharmacodynamics Plasma Exposure and BTK Occupancy WAYRILZ has a short duration of systemic exposure with a long duration of action on the target due to its slow dissociation from BTK. At therapeutic doses in healthy participants, durable BTK occupancy in peripheral blood mononuclear cells was observed over a 24-hour period. Cardiac Electrophysiology In a Thorough QT study, concentration dependent shortening in the QTc interval was observed.

Following a single dose of rilzabrutinib 400 mg, the mean maximum QTcF decrease of -7 msec (90% confidence interval: -9 msec to -5 msec) was observed at 2 hours post-dose. The mean maximum QTcF decrease at exposures 4-fold the highest recommended dose, i.e., 400 mg BID, was -10 msec (90% confidence interval: -12 msec to -8 msec) at 2 hours post-dose.

12.3Pharmacokinetics The pharmacokinetics of rilzabrutinib are presented as geometric mean (% coefficient of variation) unless otherwise specified. The C max and AUC of rilzabrutinib increase proportionally following administration of multiple doses of 300 mg to 600 mg. Steady-state plasma levels are reached within 3 days with accumulation up to 1.3-fold at the approved recommended dosage.

Following daily doses of 400 mg rilzabrutinib twice daily, the steady-state C max and AUC24h are 150 ng/mL (56%) and 1540 ng.h/mL (57.5%), respectively. Absorption The absolute oral bioavailability of rilzabrutinib is 4.7%. Following a single oral dose of 400 mg rilzabrutinib, the median time to peak plasma concentration (T max ) is approximately 2 hours.

Effect of Food: Rilzabrutinib AUC and C max decreased by 20% and 31%, respectively, following administration of a single oral 400 mg dose with a high fat meal (approximately 1,000 calories with 50% of total caloric content from fat). Distribution The volume of distribution at terminal phase (Vz) after IV administration is 149L. Rilzabrutinib is 97.5% bound to plasma proteins and the blood-to-plasma ratio is 0.786.

Metabolism Rilzabrutinib is predominantly metabolized by cytochrome P450 3A. Elimination The clearance of rilzabrutinib is time-independent. Following multiple doses of 400 mg twice daily rilzabrutinib in patients with ITP, mean CL/F ranged from 246 to 911 L/h.

Based on the population pharmacokinetic analysis in patients with ITP, the mean CL/F was 516 L/h. In Phase 1 studies, the half-life of rilzabrutinib ranged between 1.6 to 4.5 hours. Excretion Following administration of a single 400 mg 14C-labeled rilzabrutinib dose in healthy subjects, approximately 86% of the dose was recovered in feces (9% unchanged) and to a lesser extent in urine (~5%) and bile (~6%).

Approximately 0.03% of rilzabrutinib was excreted unchanged in the urine. Special Populations No clinically significant differences in the pharmacokinetics of rilzabrutinib were observed based on age (12 to 80 years), sex, race, mild to moderate renal impairment (CL CR 46 to 89 mL/min), or mild hepatic impairment (Child-Pugh class A). Rilzabrutinib exposure (both C max and AUC) increased by approximately 4.5-fold in participants with moderate hepatic impairment (Child-Pugh class B).

Patients with severe hepatic impairment (Child-Pugh class C) and CL CR <46 mL/min have not been studied. Drug Interaction Studies Clinical Studies and Model-Informed Approaches Effect of Other Drugs on Rilzabrutinib Strong CYP3A inhibitors : Concomitant use with ritonavir (strong C…

🧬 Mechanism of Action 75 words ▾

12.1Mechanism of Action Rilzabrutinib is a small-molecule, covalent, reversible kinase inhibitor targeting Bruton's tyrosine kinase (BTK). Rilzabrutinib mediates its therapeutic effect in ITP through immune modulation including 1) inhibition of B cell activation, and 2) interruption of antibody-coated cell phagocytosis by Fcγ receptor (FcγR) in spleen and liver. In vitro , rilzabrutinib reduced autoantibody signaling mediated through the FcγR pathway, blocked B cell signaling, and decreased autoantibody generation through effects on B cell activation.

📦 How Supplied / Storage and Handling 101 words ▾

16 HOW SUPPLIED/STORAGE AND HANDLING The 400 mg WAYRILZ film-coated tablets are orange, capsule-shaped, and debossed with "P" on one side and "400" on the other side. How Supplied: Package Size/Type Content NDC Number 60-count bottle Bottle containing 60 film-coated tablets with a child-resistant closure 58468-0251-6 56-count carton Carton containing 2 blister packs. Each blister pack (58468-0251-0) contains 28 film-coated tablets.

58468-0251-5 Storage Store at room temperature between 20°C to 25°C (68°F to 77°F); excursions are permitted between 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. Store and dispense in the original package. Protect from light and moisture.

📦 Storage and Handling 39 words ▾

Storage Store at room temperature between 20°C to 25°C (68°F to 77°F); excursions are permitted between 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. Store and dispense in the original package. Protect from light and moisture.

📋 Description 130 words ▾

11 DESCRIPTION WAYRILZ (rilzabrutinib) is a kinase inhibitor. Rilzabrutinib is a white to off-white solid, which is freely soluble in ethanol, sparingly soluble in isopropyl alcohol and practically insoluble in water. The chemical name for rilzabrutinib is 1-Piperidinepropanenitrile, 3-[4-amino-3-(2-fluoro-4-phenoxyphenyl)-1 H -pyrazolo[3,4- d ]pyrimidin-1-yl]-α-[2-methyl-2-[4-(3-oxetanyl)-1-piperazinyl]propylidene]-β-oxo-, (3 R )-.

The molecular formula is C 36 H 40 FN 9 O 3 and the molecular weight is 665.77 Daltons. The chemical structural formula of rilzabrutinib is shown below: Each WAYRILZ film-coated tablet for oral administration contains 400 mg rilzabrutinib. The inactive ingredients in the tablet core are crospovidone (Type A), microcrystalline cellulose, and sodium stearyl fumarate.

The inactive ingredients in the tablet coating are FD&C yellow #6/Sunset yellow FCF aluminum lake, macrogol/polyethylene glycol (PEG), polyvinyl alcohol partially hydrolyzed, talc, and titanium dioxide. Chemical Structure

💬 Information for Patients ~2 min read ▾

17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Patient Information). Storage Instructions Instruct patients to store WAYRILZ at room temperature in the original package and to protect from light and moisture. Administration Instructions Instruct patients to take WAYRILZ orally twice daily at approximately the same time each day with or without food.

Advise patients that WAYRILZ tablets should be swallowed whole with a glass of water, and not to cut, crush or chew the tablets [see Dosage and Administration (2.2) ] . Missed Dose Advise patients that if they miss a dose of WAYRILZ, they should take it as soon as possible on the same day and at least 2 hours apart from the next regular scheduled dose. Drug Interactions Advise patients to inform their healthcare providers of all concomitant medications, including over-the-counter medications, vitamins, and herbal supplements.

Advise patients to avoid eating grapefruit, starfruit, and Seville oranges and products containing these fruits with WAYRILZ [see Drug Interactions (7.1 , 7.2) ] . Serious Infections Advise patients of the possibility of serious infection, and to report any signs or symptoms [see Warnings and Precautions (5.1) ] . Hepatotoxicity, Including Drug-Induced Liver Injury Inform patients that liver problems, including severe, life-threatening, or fatal hepatitis, DILI and abnormalities in liver tests, have occurred in patients treated with BTK inhibitors.

Advise patients to contact their healthcare provider immediately if they experience abdominal discomfort, dark urine, or jaundice [ see Warnings and Precautions (5.2) ]. Embryo-Fetal Toxicity Advise female patients of reproductive potential that WAYRILZ may cause fetal harm and to inform their healthcare providers of a known or suspected pregnancy. Advise females of reproductive potential to use effective contraception during treatment with WAYRILZ and for 1 week after the last dose [see Warnings and Precautions (5.3) , Use in Specific Populations (8.1 , 8.3) ] .

Lactation Advise women not to breastfeed during treatment with WAYRILZ and for at least 1 week after the final dose [see Use in Specific Populations (8.2) ] .

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗
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For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.