Drug interactions
Clopidogrel + Omega 3 fatty acids
Severity: Moderate
Clopidogrel and Omega 3 fatty acids: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
High-dose omega-3 fatty acids can modestly inhibit platelet aggregation and prolong bleeding time. When taken with clopidogrel, bleeding risk may be slightly increased, though serious events are uncommon.
What this interaction means in plain words
Clopidogrel and Omega 3 fatty acids can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive antiplatelet effects from omega-3 fatty acid-mediated reduction in thromboxane A2 and P2Y12 receptor blockade.
What to do
Monitor for bruising, epistaxis and gastrointestinal bleeding. Reassess omega-3 use if bleeding develops.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Clopidogrel
Frequently asked questions
Can I take Clopidogrel with Omega 3 fatty acids?
MediHelp rates the interaction as moderate. Clopidogrel and Omega 3 fatty acids can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. High-dose omega-3 fatty acids can modestly inhibit platelet aggregation and prolong bleeding time. When taken with clopidogrel, bleeding risk may be slightly increased, though serious events are uncommon.
How serious is the interaction between Clopidogrel and Omega 3 fatty acids?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for bruising, epistaxis and gastrointestinal bleeding. Reassess omega-3 use if bleeding develops.
What other medicines interact with Clopidogrel?
MediHelp also lists interactions of Clopidogrel with, for example, Ombitasvir / paritaprevir / ritonavir and dasabuvir, Abrocitinib, Acetylsalicylic acid. The full list is on the Clopidogrel page.
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