Etanercept Injection
Etanercept is a TNF-blocker injection used to treat rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, plaque psoriasis, and related conditions in both adults and children.
🧬 Where this information comes from Click to expand
The clinical label records used on this page are FDA-filed Structured Product Labeling (SPL) retrieved through openFDA. We identified 1 clinical label set within the page’s selected clinical scope after exact ingredient or ingredient-combination matching and applicable route/form matching. Forms, routes, brands, labelers, strengths, and NDC product-record counts are built separately from matching FDA National Drug Code Directory records. The linked DailyMed document is a representative official source for verification, not the page’s only clinical source. View the linked label on DailyMed →
⚠️ FDA Boxed Warning — the FDA’s strongest safety alert ▾
Enbrel carries a serious boxed warning about two major risks: life-threatening infections and cancer (malignancies).
Because Enbrel suppresses part of the immune system, patients are at higher risk for serious infections — including tuberculosis (TB), invasive fungal infections (such as histoplasmosis), bacterial blood infections (sepsis), and other unusual infections. Some of these infections have led to hospitalization or death. Before starting Enbrel, you must be tested for latent (hidden) TB, and that testing should continue during treatment. If you develop a serious infection while on Enbrel, the medication should be stopped. Watch for symptoms like persistent fever, chills, unexplained fatigue, cough, or flu-like illness that doesn't go away.
Lymphoma (a type of blood cancer) and other malignancies — some fatal — have been reported in children and adolescents treated with TNF-blockers including Enbrel. Report any unusual lumps, unexplained weight loss, or swollen lymph nodes to your doctor right away.
📖 Etanercept Injection: Patient Information Guide
A plain-language walkthrough of Etanercept Injection — what it treats, how it works, how it’s taken, side effects, warnings and interactions. Tap any section to expand it.
🎯What it's used for▾
Etanercept is an injectable TNF-blocker approved for several inflammatory conditions in adults and children.
- Rheumatoid arthritis (adults): Enbrel reduces signs and symptoms, slows joint damage, and improves physical function in moderately to severely active disease — used alone or with methotrexate
- Psoriatic arthritis (adults): Enbrel reduces joint symptoms and slows structural joint damage, with or without methotrexate
- Ankylosing spondylitis (adults): Enbrel reduces signs and symptoms of active disease
- Plaque psoriasis (adults and children 4 years and older): Enbrel treats chronic moderate-to-severe plaque psoriasis in patients who are candidates for systemic therapy or phototherapy
- Polyarticular juvenile idiopathic arthritis (children 2 years and older): Enbrel reduces signs and symptoms of moderately to severely active disease
- Juvenile psoriatic arthritis (children 2 years and older): Enbrel is approved for active juvenile psoriatic arthritis in pediatric patients
⚙️How it works▾
Your body naturally produces a protein called TNF (tumor necrosis factor) that helps regulate immune and inflammatory responses. In conditions like rheumatoid arthritis, psoriasis, and related diseases, TNF levels are abnormally high — causing the immune system to attack healthy tissue, inflame joints, and damage skin. Etanercept is engineered to mimic the body's own TNF receptor, acting like a sponge that catches and neutralizes excess TNF before it can bind to cells and trigger inflammation. This helps reduce swelling, pain, and disease activity.
By dampening this specific inflammatory signal, etanercept also reduces the expression of other molecules involved in inflammation, including certain adhesion proteins that help immune cells travel to sites of injury, and inflammatory messengers like IL-6.
💊How it's taken▾
Enbrel is always given by subcutaneous injection — a small shot just under the skin in the thigh, abdomen, or outer upper arm. The timing varies by condition and age, so always follow your prescriber's specific regimen.
- Adults with rheumatoid arthritis, psoriatic arthritis, or ankylosing spondylitis: typically once weekly
- Adults with plaque psoriasis: twice weekly for the first 3 months, then once weekly
- Pediatric patients (pJIA, juvenile psoriatic arthritis, plaque psoriasis): once weekly, with dose based on body weight up to a maximum per week
Enbrel can be taken with or without food. It may be self-injected after proper training. Always read and follow the specific Instructions for Use leaflet included with your Enbrel device.
🤒Side effects — in detail▾
The most common side effects with Enbrel are infections and injection site reactions.
- Injection site reactions — redness, itching, pain, swelling, or bruising where the shot was given (usually mild and most common in the first month)
- Upper respiratory infections — colds, sinusitis, and influenza are most frequent
- Diarrhea
- Rash and itching (pruritus)
- Fever
- Hives (urticaria)
More serious reactions — including severe infections, blood cell problems, nervous system effects, worsening heart failure, and cancer — have been reported. Contact your doctor right away if you feel unusually ill, develop persistent fever, notice abnormal bruising or bleeding, or experience any new or worsening neurological symptoms.
⚠️Warnings & precautions▾
- Serious infections: Enbrel suppresses the immune system, raising the risk of serious and sometimes fatal infections including tuberculosis, invasive fungal infections, and bacterial bloodstream infections. You must be screened for TB before and during treatment. Stop Enbrel and seek care immediately if you develop signs of a serious infection.
- Malignancies (cancer): Lymphoma and other cancers — some fatal — have been reported, especially in children and adolescents treated with TNF-blockers. Skin cancers, including melanoma and non-melanoma types, have also been reported. Regular skin exams are recommended for high-risk patients.
- Heart failure: Worsening or new-onset congestive heart failure has been reported. Use with caution if you have heart failure, and watch for new or worsening symptoms.
- Nervous system effects: Rare cases of new or worsening demyelinating disorders (diseases affecting the nerve's protective coating) — including multiple sclerosis, optic neuritis, and Guillain-Barré syndrome — have been reported.
- Blood cell problems: Rare cases of serious blood disorders including aplastic anemia (bone marrow failure) have occurred. Seek immediate care for persistent fever, unusual bruising, bleeding, or pallor.
- Hepatitis B reactivation: Enbrel can cause an inactive hepatitis B infection to become active again. You should be tested before starting treatment and monitored throughout.
- Autoimmunity: Lupus-like syndrome and autoimmune hepatitis have been reported. Stop Enbrel if these develop.
🔀What it interacts with▾
Enbrel has several important interactions to be aware of — always tell your doctor and pharmacist about every medication you take.
- Live vaccines: Do not receive live vaccines while on Enbrel — the immune-suppressing effect may make live vaccines unsafe or ineffective
- Anakinra: Combining Enbrel with anakinra (another immune-modulating biologic) significantly raises the risk of serious infections including pneumonia and cellulitis
- Abatacept: Using Enbrel with abatacept increases serious adverse events including infections, without improving clinical outcomes
- Cyclophosphamide: Concurrent use is not recommended due to safety concerns
- Sulfasalazine: Adding Enbrel to existing sulfasalazine therapy has been linked to mild decreases in white blood cell (neutrophil) counts; clinical significance is unclear
- Methotrexate, NSAIDs, corticosteroids, and analgesics: These may be continued alongside Enbrel in appropriate patients — the pharmacokinetics of Enbrel are not affected by methotrexate
This is not a complete list of interactions. Always talk with your doctor or pharmacist before starting, stopping, or changing any medication.
📋Before taking it▾
- Sepsis: Enbrel is contraindicated — do not use if you have an active, life-threatening bloodstream infection
- Active infections: Do not start Enbrel during any active infection, including localized ones; discuss your history of chronic or recurring infections with your doctor
- Tuberculosis: Must be screened for latent TB before starting; if positive, TB treatment should begin before Enbrel is started
- Heart failure: Use with caution; doctors should weigh risks carefully and monitor closely
- Nervous system disorders: Caution is needed if you have a history of multiple sclerosis, optic neuritis, or other demyelinating disorders
- Hepatitis B: Prior infection can reactivate; screening and monitoring are required
- Pregnancy: Available data do not confirm a clear pattern of birth defects, but risks exist. Live vaccines should not be given to infants exposed to Enbrel in the womb without careful consideration. Discuss with your doctor.
- Breastfeeding: Etanercept is present in breast milk at low levels and has not been detected in the plasma of breastfed infants; discuss the benefits and risks with your doctor
- Children: Enbrel is approved for certain pediatric uses starting at age 2 (arthritis) or 4 (psoriasis); malignancy risk in children should be discussed with a prescriber
- Older adults and immunocompromised patients: Those over 65 and those on additional immunosuppressants are at greater risk for serious infections and require closer monitoring
🚑If you take too much▾
In clinical studies, no dose-limiting side effects were identified with Enbrel. Single intravenous doses approximately twice the recommended amount were given to healthy volunteers without evidence of serious toxic effects. If you suspect an overdose or accidental extra dose, contact your healthcare provider or a poison control center for guidance.
📡Pharmacodynamics — effects in the body▾
By blocking excess TNF, etanercept reduces several markers of inflammation in the body. It lowers levels of inflammatory signaling molecules like IL-6, decreases the activity of enzymes that break down joint tissue (such as MMP-3, also called stromelysin), and reduces the expression of adhesion molecules that help immune cells migrate into inflamed areas. These combined effects help explain why it reduces joint swelling, pain, and skin inflammation in the conditions it treats.
🔬Pharmacokinetics — how your body processes it▾
After a subcutaneous injection, etanercept is gradually absorbed and reaches its peak blood concentration roughly 2 to 3 days later. It has a relatively long half-life — the time for the body to clear half the drug — of about 4 days, which supports once- or twice-weekly dosing. Blood levels build up with repeated dosing over time. The drug's behavior in the body is not meaningfully affected by gender, age in adults, or concurrent methotrexate use. Formal studies in people with kidney or liver impairment have not been conducted.
📦How to store it▾
refrigerated at 36°F to 46°F (2°C to 8°C) in the original carton to protect from light or physical damage. store Enbrel in extreme heat or cold. DO NOT FREEZE.
📄 Written from Etanercept Injection’s FDA-approved label information, summarized in plain language with AI, and reviewed by our pharmacy team before publication. Every point is grounded in that labeling — nothing is invented. How we use AI →
Supplements & herbs that interact with Etanercept Injection
53 supplements and herbal products have documented interactions with Etanercept Injection in the licensed clinical database we use. Most are manageable — but your pharmacist should know about everything you take, including vitamins and herbals.
- Moderate · 52
- Minor · 1
Educational information from a licensed clinical database (Natural Medicines) — see our data sources & update cadence. Not medical advice: an interaction being documented does not mean it will happen to you; do not start or stop medications or supplements without professional guidance.
🩺 Pharmacist Counseling Corner
Quick, plain-English answers to the questions patients ask most about Etanercept Injection — the kind of thing our pharmacy team would talk through with you at the counter.
What exactly does Enbrel do, and why do I need an injection instead of a pill? ▾
What side effects are most likely, and which ones should make me call my doctor right away? ▾
Why do I need a tuberculosis test before starting this medication? ▾
Can I get vaccines while I'm on Enbrel? ▾
Is it safe to take Enbrel if I'm pregnant or breastfeeding? ▾
How do I store Enbrel, and what should I do if I miss a dose? ▾
Is Etanercept Injection available over the counter? ▾
When was Etanercept Injection first available? ▾
Who makes Etanercept Injection? ▾
💬 Answers drafted from Etanercept Injection’s FDA-approved label information, summarized in plain language with AI, and reviewed by our pharmacy team before publication. Grounded in that labeling — nothing is made up. How we use AI →
🧰 Keep exploring
💊 How Etanercept Injection comes
Etanercept Injection is available in 1 form. Different forms and brands can have different approved uses, doses, schedules, and directions. Follow the instructions for your exact product, and do not switch forms without guidance from your prescriber or pharmacist.
Injection
How this form is used
- Enbrel is used subcutaneously to treat moderately to severely active rheumatoid arthritis in adults, alone or with methotrexate
- Enbrel is used subcutaneously to treat psoriatic arthritis and ankylosing spondylitis in adults
- Enbrel is used subcutaneously to treat chronic moderate-to-severe plaque psoriasis in adults and children 4 years and older
- Enbrel is used subcutaneously to treat polyarticular juvenile idiopathic arthritis and juvenile psoriatic arthritis in children 2 years and older
- Enbrel is injected subcutaneously into the thigh, abdomen, or outer upper arm — rotate injection sites with each dose
- Enbrel prefilled syringes and autoinjectors should be left at room temperature for at least 15–30 minutes before injecting; do not remove the needle cover until ready to inject
- Enbrel solution should be inspected before each use — do not use if it is discolored, cloudy, or contains foreign particles (small white protein particles are normal)
- Enbrel devices are not made with natural rubber latex; follow the specific Instructions for Use guide included with whichever Enbrel presentation you are using
📊 Etanercept Injection across the U.S. market
How Etanercept Injection appears in the FDA’s National Drug Code Directory — including its dosage forms, strengths, brand names, manufacturers, and FDA-listed product records. These are directory records, not sales or prescription volume.
Share of FDA-listed product records by manufacturer — FDA National Drug Code Directory. Record counts are not sales or prescription volume.
📈 How widely Etanercept Injection is used
A general measure of how commonly Etanercept Injection is prescribed, based on Medicaid — one of the largest public drug programs. The figure below is prescriptions filled in Q1–Q4 2025, summed across every form and brand of the drug.
Think of this as a proxy for how widely Etanercept Injection is used, drawn from freely available public data. Medicaid is just one program — these numbers don’t include Medicare, other government coverage, or commercial and cash-pay prescriptions, so real-world use is higher than what’s shown here.
How commonly is Etanercept Injection prescribed? Of the 1,596 medications we measure, Etanercept Injection ranks #457 by Medicaid prescriptions — more than 71% of them.
Utilization by Etanercept Injection product
Pick a product to see its own Medicaid numbers. Each chip is one clinical product — a specific strength & dosage form as defined by RxNorm — with brand-name and generic versions combined.
1 ML etanercept 50 MG/ML Auto-Injector Most dispensed
Summed across the 1 of 4 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 1653223
1 ML etanercept 50 MG/ML Prefilled Syringe
Summed across the 1 of 3 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 727757
1 ML etanercept 50 MG/ML Cartridge
Summed across the 1 of 6 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 2182338
0.5 ML etanercept 50 MG/ML Injection
Summed across the 1 of 4 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 2392140
0.5 ML etanercept 50 MG/ML Prefilled Syringe
Summed across the 1 of 4 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 809158
Shares are of the Medicaid prescriptions shown here. Product grouping follows RxNorm (the National Library of Medicine’s drug terminology), so “one product” means one strength & dosage form regardless of manufacturer. Dollar figures are gross Medicaid reimbursement before mandatory rebates — rebates (often large, especially for brand-name drugs) are confidential, so actual net cost to Medicaid is lower than shown.
Source: Medicaid State Drug Utilization Data (CMS), aggregated by generic ingredient — summed across every NDC (all brands, strengths, salt forms and dosage forms) of Etanercept Injection, and across all states and both fee-for-service and managed-care claims. A general popularity signal; it excludes Medicare, commercial insurance and cash prescriptions, so it is not total U.S. use. Based on the 5 of 21 listed Etanercept Injection NDCs with Medicaid activity.
🔍 Compare Etanercept Injection products
A representative set of FDA-listed product records for Etanercept Injection — across manufacturers, strengths, and dosage forms, grouped by form with each product’s manufacturer and how the FDA approved it. The same medicine may be made and packaged by different companies, so a single drug can have many directory entries. (It’s also why a refill can look different — a new shape, color, or box — even though it contains the same medication.)
| Strength | Route | Manufacturer / Labeler | Category ⓘ | Details |
|---|---|---|---|---|
| 💊Injection | ||||
| 50 mg/mL | Subcutaneous | A-S Medication Solutions × 3 listings | BLA | Find on DailyMed ↗ |
| 25 mg/0.5 mL | Subcutaneous | Immunex Corporation × 8 listings | BLA | View NDC → |
| 50 mg/mL | Subcutaneous | Immunex Corporation × 16 listings | BLA | View NDC → |
Showing 27 of 27 products — FDA National Drug Code Directory. See every product, package size and price: browse all 27 Etanercept Injection NDCs →
📈 What people report — real-world data (FDA FAERS)
After a medicine reaches the market, patients, doctors and drugmakers can send the FDA reports of problems they think may be linked to it. Here’s what’s been reported for Etanercept Injection — a signal of what to watch for, not proof the drug caused it.
Source: openFDA, from the FDA Adverse Event Reporting System (FAERS). These are voluntary reports — they don’t prove the drug caused the effect, and counts reflect how often something was reported, not how often it actually happens. Reports also often name the very problem the medicine is taken for — a common reason to file one is that the drug didn’t help — so for a pain reliever you may see “pain” high on the list; that points to why the report was filed, not to the drug causing the symptom. This counts every report that lists Etanercept Injection in any role, so the total runs higher than the FDA’s official dashboard, which counts only cases where the drug is the suspect. For the authoritative figures, see the FDA FAERS Public Dashboard. Always talk to your pharmacist or doctor.
🏛️ The road to your pharmacy
How Etanercept Injection went from FDA review to the pharmacy shelf — the key milestones in its regulatory journey.
Source: Drugs@FDA.
🚨 Recall history
A recall is when a specific batch of a medicine is pulled from the market — usually a manufacturing issue, not a problem with the drug itself. Class I is most serious, Class III least.
Source: openFDA drug enforcement (recall) reports.
RxNorm Concept Web — From Ingredient to Every Form and Strength
This page starts with one ingredient concept (IN). The branches below show its dose-form concepts (SCDF), then the available clinical drug and strength concepts (SCD). Combination products remain separate concepts with their own pages.
RxCUI 214555 5 dose forms · 8 strengths
-
Dose form (SCDF) Auto-Injector RxCUI 1653222In current FDA listingsClinical drug / strength (SCD) 1 ML etanercept 50 MG/MLRxCUI 1653223 -
Dose form (SCDF) Cartridge RxCUI 2182337No current FDA listingClinical drug / strength (SCD) 1 ML etanercept 50 MG/MLRxCUI 2182338 -
Dose form (SCDF) Injectable Solution RxCUI 385098In current FDA listings -
Dose form (SCDF) Injection RxCUI 2392139In current FDA listingsClinical drug / strength (SCD) 0.5 ML etanercept 50 MG/MLRxCUI 2392140 -
Dose form (SCDF) Prefilled Syringe RxCUI 727756No current FDA listingClinical drug / strength (SCD) 0.5 ML etanercept 50 MG/MLRxCUI 8091580.5 ML etanercept-ykro 50 MG/MLRxCUI 24625211 ML etanercept 50 MG/MLRxCUI 727757
Look up RxCUI 214555 in the RxCUI Atlas →
RxNorm is the U.S. National Library of Medicine’s normalized drug vocabulary. Its concept hierarchy can include forms that are not currently marketed; the status on each branch compares that concept with current FDA listings. RxCUIs identify vocabulary concepts, not individual packages or manufacturers.
📦 Supply & shortage status
Whether Etanercept Injection is in short supply in the U.S. right now, plus any shortage history the FDA has on record. A shortage usually reflects a manufacturing or demand issue — not a safety problem with the drug.
Source: openFDA, from the FDA Drug Shortages database.
🏷️ Sold under these brand names
🏭 Manufacturers & labelers
RxNorm drug class
Etanercept Injection belongs to the Tumor Necrosis Factor Blocker class.
Classified by RxNorm RxClass — the U.S. National Library of Medicine's standardized drug-classification service (Established Pharmacologic Class from the FDA, the ATC drug family from the WHO, and mechanism of action). Reference only, not medical advice.
🔬 Where this comes from
Core label, product, RxNorm, safety, and utilization data on this page come from the sources identified below. AI-written, editorial, and licensed sections are labeled separately.
How we combine label and product data
HelloPharmacist combines public FDA and NLM records; we don’t author the underlying clinical facts. We identified 1 FDA-filed SPL label set within the page’s selected clinical scope after exact ingredient or ingredient-combination matching and applicable route/form matching. The representative label is the starting point for the displayed reference monograph; the 12 largest stored in-scope SPL records, which may include that representative, are compared section by section, and the longest available version of each section is retained. Forms, routes, brands, labelers, product-listed strengths, and product-record counts are aggregated separately from ingredient-matched FDA NDC Directory records; package records listed above are associated with the linked SPL; and the normalized concept hierarchy comes from NLM RxNorm.
Where a section is identified as AI-written, its plain-language text is generated from bounded label evidence. New draft drug pages remain in the admin review queue before first publication. Immunex Corporation is the representative DailyMed label linked for verification and dates; it is not the sole source used for the page.
This is general education, not medical advice — always consult your doctor or pharmacist about your medications and any medical condition. For the exact wording of the linked representative label, view that label on DailyMed; some displayed composite sections may come from other in-scope SPL labels. Learn how we use AI and our data sources & update cadence.