Important: This page is general information, not medical advice. It does not recommend or prescribe any treatment. Always consult your doctor or pharmacist before starting, stopping or changing any medicine.
Quick facts
- How it is given
- oral
- Type
- human prescription drug
- RxNorm ID
- 1304979
We do not publish dosing. How much of this medicine to take, how often, and for how long depends on your age, weight, kidney and liver function, other conditions and other medicines. That is a decision for the person who prescribes or dispenses it. Follow the directions on your own pack and ask your pharmacist if anything is unclear.
What it is used to treat
Icosapent ethyl capsules are 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 capsules 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 capsules on the risk for pancreatitis in patients with severe hypertriglyceridemia has not been determined. (1)
About this medicine
Icosapent ethyl capsules, a lipid-regulating agent, is supplied as either a 0.5 gram or a 1 gram liquid-filled clear, transparent soft gelatin capsules containing clear to light yellow colored solution for oral use. Each icosapent ethyl capsule contains either 0.5 grams of icosapent ethyl (in a 0.5 gram capsule) or 1 gram of icosapent ethyl (in a 1 gram capsule). Icosapent ethyl is an ethyl ester of the omega-3 fatty acid eicosapentaenoic acid (EPA). The empirical formula of icosapent ethyl is C 22 H 34 O 2 and the molecular weight is 330.50. The chemical name for icosapent ethyl is ethyl all-cis-5,8,11,14,17-icosapentaenoate with the following chemical structure: Icosapent ethyl capsules also contain the following inactive ingredients: bloom gelatin, glycerin, alpha tocopherol, medium chain triglycerides, and lecithin. The capsules are imprinted either with white imprinting ink containing titanium dioxide, propylene glycol, and hypromellose 2910, or by laser printing. structure
Who should not take it
Icosapent ethyl capsules are contraindicated in patients with known hypersensitivity (e.g., anaphylactic reaction) to icosapent ethyl or any of its components. Icosapent ethyl capsules are contraindicated in patients with known hypersensitivity (e.g., anaphylactic reaction) to icosapent ethyl or any of its components. (4)
Warnings and cautions
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 capsules 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 capsules. 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. […]
Reported side effects
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 XLCare Pharmaceuticals, Inc. at 1-866-495-1995 or contact the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Common adverse reactions (incidence ≥3% on icosapent ethyl and ≥1% more frequent than placebo) included musculoskeletal pain, peripheral edema, constipation, gout, and atrial fibrillation. Hypertriglyceridemia Trials In two randomized, double-blind, placebo-controlled trials in patients with triglyceride levels between 200 and 2000 mg/dL treated for 12 weeks, adverse reactions reported with icosapent ethyl at an incidence ≥1% more frequent than placebo based on pooled data included arthralgia and oropharyngeal pain. 6.2 Postmarketing Experience Additional adverse reactions have been identified during post-approval use of icosapent ethyl capsules. Because these reactions are reported voluntarily from a population of uncertain size, it is generally not possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Diarrhea Blood triglycerides increased Abdominal discomfort Pain in the extremities
Interactions with other medicines
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 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.
Use in specific groups
8.1 Pregnancy Risk Summary The available data from published case reports and the pharmacovigilance database on the use of icosapent ethyl in pregnant women are insufficient to identify a drug-associated risk for major birth defects, miscarriage or adverse maternal or fetal outcomes. In animal reproduction studies in pregnant rats, non-dose-related imbalances for some minor developmental findings were observed with oral administration of icosapent ethyl during organogenesis at exposures that were equivalent to the clinical exposure at the human dose of 4 g/day, based on body surface area comparisons. In a study in pregnant rabbits orally administered icosapent ethyl during organogenesis, there were no clinically relevant adverse developmental effects at exposures that were 5 times the clinical exposure, based on body surface area comparisons ( see Data ). 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 2-4% and 15-20%, respectively. Data Animal Data In pregnant rats given oral gavage doses of 0.3, 1 and 2 g/kg/day icosapent ethyl from gestation through organogenesis all drug treated groups had non-dose-related imbalances in visceral and skeletal findings, including 13 th reduced ribs, additional liver lobes, testes medially displaced and/or not descended, at human systemic exposures following a maximum oral dose of 4 g/day based on body surface comparisons. In a multigenerational developmental study in pregnant rats given doses of 0.3, 1, 3 g/kg/day icosapent ethyl by oral gavage from gestation day 7-17, icosapent ethyl did not affect viability in fetuses (F 1 or F 2 ). Non-dose-related imbalances in findings of absent optic nerves and unilateral testes atrophy at human exposures based on the maximum dose of 4 g/day and on body surface area comparisons. […]
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This page is built from the openFDA record of the U.S. Food and Drug Administration's approved labelling for this product, effective 30 April 2026. Label text has been shortened and reformatted for readability; safety wording has not been altered in meaning. FDA labelling describes products approved in the United States — brand names, strengths, formulations and approved uses may differ in your country. Always read the leaflet that comes with your own pack. PocketsInfo is not affiliated with, and is not endorsed by, the FDA. Retrieved 2026-07-30.