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Medication guide

Icosapent ethyl: uses, appearance and warnings

What the official FDA label says Icosapent ethyl is used for, what it looks like, and its most important warnings — in plain English, with the label text one click away.
Prescription label

Uses

What the official label says Icosapent ethyl is used for

Icosapent ethyl is a prescription ethyl ester of eicosapentaenoic acid (EPA), an omega-3 fatty acid. The label says icosapent ethyl capsules are used along with diet to lower triglyceride levels in adults with severe high triglycerides (hypertriglyceridemia).

The label says its effect on the risk of pancreatitis in people with severe high triglycerides has not been determined.

Read the label's “Indications and usage” section (verbatim)
Icosapent ethyl is indicated: • as an adjunct to diet to reduce triglyceride (TG) levels in adult patients with severe (≥500 mg/dL) hypertriglyceridemia. Limitations of Use The effect of icosapent ethyl on the risk for pancreatitis in patients with severe hypertriglyceridemia has not been determined. Icosapent ethyl capsules are an ethyl ester of eicosapentaenoic acid (EPA) indicated: • as an adjunct to diet to reduce triglyceride (TG) levels in adult patients with severe (≥ 500 mg/dL) hypertriglyceridemia. ( 1 ) Limitations of Use: • The effect of icosapent ethyl on the risk for pancreatitis in patients with severe hypertriglyceridemia has not been determined. ( 1 )

Names & forms

Brand names, forms and strengths

Brand names (from RxNorm; not every brand is still sold): Vascepa.

Generic name: icosapent ethyl · RxNorm ID (RxCUI): 1304974

Forms and strengths of Icosapent ethyl listed in RxNorm
FormStrengths listed in RxNorm
Oral Capsule500 MG, 1000 MG

Strengths are listed so you can recognise a product — not as dosing information. Only your prescriber can decide what is right for you.

Read the label's “Dosage forms and strengths” section (verbatim)
Icosapent Ethyl Capsules are supplied as a 1 gram, clear, oblong capsule with product identification “54 648” on one side. Capsules: 1 gram ( 3 )

Appearance

What Icosapent ethyl looks like

Illustration: yellow capsule capsule, imprint 54 64854 648

icosapent ethyl 1 g
Northstar Rx LLC

Illustration: Natural colored oval capsule, imprint RDY 267RDY 267

icosapent ethyl 1000 mg
Dr. Reddy's Laboratories, Inc.

Illustration: yellow oval capsule, imprint 109109

icosapent ethyl 0.5 g
Hikma Pharmaceuticals USA Inc.

Illustration: transparent oval capsule, imprint 17381738

icosapent ethyl 0.5 g
Zydus Pharmaceuticals USA Inc.

Illustration: transparent oval capsule, imprint 15921592

icosapent ethyl 1 g
Zydus Pharmaceuticals USA Inc.

Illustration based on label data — not a photo; appearance varies by manufacturer. Confirm with your pharmacist.
Appearance of Icosapent ethyl products from DailyMed product data
StrengthFormColourShapeSizeImprintScoreLabeler
icosapent ethyl 1 gcapsuleyellowcapsule25 mm54 · 6481Northstar Rx LLC
icosapent ethyl 1000 mgcapsuleyellow“Natural colored”oval24 mmRDY · 2671Dr. Reddy's Laboratories, Inc.
icosapent ethyl 0.5 gcapsuleyellowoval15 mm1091Hikma Pharmaceuticals USA Inc.
icosapent ethyl 0.5 gcapsulewhite“transparent”oval14 mm17381Zydus Pharmaceuticals USA Inc.
icosapent ethyl 1 gcapsulewhite“transparent”oval24 mm15921Zydus Pharmaceuticals USA Inc.

From the product data in each manufacturer's label on DailyMed. Many companies make Icosapent ethyl, so your medicine may look different from any shown here. If a pill looks unfamiliar, ask your pharmacist before taking it.

Read the label's “How supplied” section (verbatim)
Icosapent Ethyl Capsules 1 gram capsules are supplied as a clear, oblong capsule filled with colorless to pale yellow oily liquid and printed with “54 648” in black ink on one side. NDC 72603-129-01: Bottle of 120 Capsules Store at 20° to 25° C (68° to 77°F). [See USP Controlled Room Temperature.] Keep out of reach of children.

Safety

Important warnings for Icosapent ethyl

In plain English, the label's key warnings include:

  • The label says icosapent ethyl was linked to a higher risk of atrial fibrillation or atrial flutter needing hospital care, especially in people who had these rhythm problems before.
  • It was also linked to a higher risk of bleeding, especially in people taking blood thinners or antiplatelet medicines such as aspirin, clopidogrel or warfarin.
  • Because it comes from fish oil, people with fish or shellfish allergies may be at risk of an allergic reaction; it is not known whether their risk is higher.
Contraindications — who should not use it (verbatim)
Icosapent ethyl is contraindicated in patients with known hypersensitivity (e.g., anaphylactic reaction) to icosapent ethyl or any of its components. Icosapent ethyl is contraindicated in patients with known hypersensitivity (e.g., anaphylactic reaction) to icosapent ethyl or any of its components. ( 4 )
Warnings and precautions (verbatim excerpt)
Atrial Fibrillation/Flutter: Icosapent ethyl was associated with an increased risk of atrial fibrillation or atrial flutter requiring hospitalization in a double-blind, placebo-controlled trial. The incidence of atrial fibrillation was greater in patients with a previous history of atrial fibrillation or atrial flutter. ( 5.1 ) Potential for Allergic Reactions in Patients with Fish Allergy: Icosapent ethyl contains ethyl esters of the omega-3 fatty acid, eicosapentaenoic acid (EPA), obtained from the oil of fish. It is not known whether patients with allergies to fish and/or shellfish are at increased risk of an allergic reaction to icosapent ethyl. Inform patients with known hypersensitivity to fish and/or shellfish about the potential for allergic reactions and advise them to discontinue icosapent ethyl and seek medical attention if any reactions occur. ( 5.2 ) Bleeding: Icosapent ethyl was associated with an increased risk of bleeding in a double-blind, placebo-controlled trial. The incidence of bleeding was greater in patients receiving concomitant antithrombotic medications, such as aspirin, clopidogrel, or warfarin. ( 5.3 ) 5.1 Atrial Fibrillation/Flutter Icosapent ethyl is associated with an increased risk of atrial fibrillation or atrial flutter requiring hospitalization. In a double-blind, placebo-controlled trial of 8,179 subjects, adjudicated atrial fibrillation or atrial flutter requiring hospitalization for 24 or more hours occurred in 127 (3%) patients treated with icosapent ethyl compared to 84 (2%) patients receiving placebo [HR= 1.5 (95% CI 1.14, 1.98)]. The incidence of atrial fibrillation was greater in patients with a previous history of atrial fibrillation or atrial flutter. 5.2 Potential for Allergic Reactions in Patients with Fish Allergy Icosapent ethyl contains ethyl esters of the omega-3 fatty acid, eicosapentaenoic acid (EPA), obtained from the oil of fish. It is not known whether patients with allergies to fish and/or shellfish are at increased risk of an allergic reaction to icosapent ethyl. Inform patients with known hypersensitivity to fish and/or shellfish about the potential for allergic reactions to icosapent ethyl and advise them to discontinue icosapent ethyl and seek medical attention if any reactions occur. 5.3 Bleeding Icosapent ethyl is associated with an increased risk of bleeding. In a double-blind, placebo-controlled trial of 8,179 patients, 482 (12%) patients receiving icosapent ethyl experienced a bleeding event compared to 404 (10%) patients receiving placebo. Serious bleeding events occurred in 111 (3%) of patients on icosapent ethyl vs. 85 (2%) of patients receiving placebo. The incidence of bleeding was greater in patients receiving concomitant antithrombotic medications, such as aspirin, clopidogrel, or warfarin.
Side effects — opening of the label's adverse reactions section
The following important adverse reactions are described below and elsewhere in the labeling: • Atrial Fibrillation or Atrial Flutter [see Warnings and Precautions ( 5.1 )] • Potential for Allergic Reactions in Patients with Fish Allergy [see Warnings and Precautions ( 5.2 )] • Bleeding [see Warnings and Precautions ( 5.3 )] Common adverse reactions (incidence ≥3% and ≥1% more frequent than placebo): musculoskeletal pain, peripheral edema, constipation, gout, and atrial fibrillation ( 6.1 ) Common adverse reactions in the hypertriglyceridemia trials (incidence ≥1% more frequent than placebo): arthralgia and oropharyngeal pain. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Northstar Rx LLC at 1-800-206-7821 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. …
Drug interactions — opening of the label's section
Increased Bleeding Risk with Anticoagulants and Antiplatelet Agents: Some published studies with omega-3 fatty acids have demonstrated prolongation of bleeding time. Monitor patients receiving icosapent ethyl capsules and concomitant anticoagulants and/or antiplatelet agents for bleeding. ( 7 ) 7.1 Increased Bleeding Risk with Anticoagulants and Antiplatelet Agents Some published studies with omega-3 fatty acids have demonstrated prolongation of bleeding time. The prolongation of bleeding time reported in those studies has not exceeded normal limits and did not produce clinically significant bleeding episodes. Monitor patients receiving icosapent ethyl and concomitant anticoagulants and/or antiplatelet agents for bleeding.

This is not a complete list of warnings or side effects. Read the full label and talk to your prescriber or pharmacist. To report a side effect to the FDA, use MedWatch.

Resources

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FAQ

Icosapent ethyl: frequently asked questions

+What is Icosapent ethyl used for?

The label says icosapent ethyl capsules are used along with diet to reduce triglyceride levels in adults with severe hypertriglyceridemia.

+What are the most important warnings for Icosapent ethyl?

The label warns about a higher risk of atrial fibrillation or flutter needing hospitalization, and a higher risk of bleeding, especially with blood thinners. It also notes possible allergic reactions in people with fish or shellfish allergies.

+What side effects are listed on the Icosapent ethyl label?

The label says common side effects included muscle and bone pain, swelling in the legs, constipation, gout and atrial fibrillation. In high triglyceride trials, joint pain and throat pain were reported. The full list is in the official label, and your pharmacist can explain it.

+Who should not take Icosapent ethyl, according to the label?

The label says icosapent ethyl should not be used by people with a known allergy, such as an anaphylactic reaction, to icosapent ethyl or any of its ingredients.

+What does Icosapent ethyl look like?

Appearance depends on the manufacturer and strength. Examples from DailyMed product data: icosapent ethyl 1 g capsule from Northstar Rx LLC: yellow, capsule, imprint "54 648"; icosapent ethyl 1000 mg capsule from Dr. Reddy's Laboratories, Inc.: Natural colored, oval, imprint "RDY 267"; icosapent ethyl 0.5 g capsule from Hikma Pharmaceuticals USA Inc.: yellow, oval, imprint "109". Your medicine may look different — always confirm with your pharmacist.

+Can Icosapent ethyl be delivered to my home?

Many prescriptions can be filled by licensed mail-order pharmacies and delivered to your home; whether that is possible for a particular medicine depends on the medicine, your prescriber, your state and your coverage. Ask your prescriber or pharmacist. Our prescription delivery guide explains how home delivery generally works.

Sources

Label text is quoted from the Northstar Rx LLC label (label version effective July 29, 2026), retrieved October 20, 2026. Other manufacturers' labels for the same medicine may differ in wording.

The plain-English summaries were generated by software from the label text above and have not been reviewed by a clinician. If anything here differs from the label that came with your medicine, follow your label and your pharmacist.

Prescriptions.plus is an educational portal. We are not a pharmacy, law firm, medical provider, insurer or claims administrator, and nothing here is medical or legal advice. Educational purposes only. This page does not tell you whether to take a medicine or how much to take. Medical emergency? Call 911. Poison emergency: call Poison Control at 1-800-222-1222.

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