Can I take Vascepa (icosapent ethyl) and fish oil together?
In most cases, yes. Vascepa is a prescription form of purified EPA (eicosapentaenoic acid), while many over-the-counter fish oil products contain a mix of EPA and DHA (and vary by brand). Taking them together usually means you are adding more omega-3 fats—mostly EPA with Vascepa and additional EPA/DHA from fish oil—so the main concern is avoiding taking too much of the combined omega-3 dose.
What’s the main risk when combining them?
The main issue is dose-related side effects, especially:
- Bleeding tendency in people at higher risk (for example, those on anticoagulants or with bleeding disorders).
- Stomach upset or reflux.
- Possible effects on cholesterol/triglycerides depending on the product (fish oil formulas vary; some have more DHA).
If you take a blood thinner (warfarin, apixaban, rivaroxaban, etc.) or have a history of bleeding, check with your clinician before combining.
How do I avoid doubling up on omega-3s?
The simplest way is to compare the EPA amounts on the labels. Vascepa provides EPA as the active ingredient, and fish oil capsules provide EPA (and DHA) in measured amounts.
Clinicians typically aim for a specific omega-3 target (often discussed in terms of EPA/DHA totals), so you generally want to avoid adding a fish oil product that pushes your total omega-3 intake far above what was intended.
Does DHA matter since Vascepa is mostly EPA?
Yes. Vascepa contains mostly EPA and does not provide DHA in the way typical fish oil does. Many fish oil supplements include both EPA and DHA, so adding fish oil to Vascepa increases DHA exposure as well. If your goal is triglyceride lowering or cardiovascular risk reduction, your prescriber may prefer you stick with the EPA-only approach unless there is a specific reason to add DHA-containing fish oil.
What should you ask your doctor or pharmacist?
When combining them, ask:
- “What total EPA dose am I targeting with Vascepa plus any fish oil?”
- “Do any of my current medications (especially blood thinners) increase my bleeding risk?”
- “Should I avoid fish oil altogether, or can I take a specific product and dose?”
If you share the fish oil brand and the mg per serving (EPA and DHA amounts), your pharmacist can help you calculate the combined EPA/DHA dose.
When should you stop and seek care?
Get medical advice promptly if you notice signs of bleeding (unusual bruising, nose/gum bleeding, black/tarry stools, blood in urine) or if you develop severe or persistent side effects.