What should I avoid while taking blood thinners?

Avoid adding NSAIDs (ibuprofen, naproxen) or aspirin without checking, watch supplements like fish oil, vitamin E, and ginkgo, and tell every prescriber. On warfarin, keep vitamin K (leafy greens) intake consistent.

Do I have to avoid leafy greens on warfarin?

No. You just need to keep your vitamin K intake steady day to day rather than having big swings, and tell your anticoagulation clinic before starting a vitamin-K supplement.

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Blood thinners: what to watch for

By the RxSafeCheck team · Educational, reviewed for plain-language clarity · Morning Mind LLC

Blood thinners prevent dangerous clots, but they also mean bleeding is easier. Knowing what affects them helps you stay in the safe zone.

Medicines that add bleeding risk

NSAIDs (ibuprofen, naproxen) and aspirin.
Other blood thinners or antiplatelets taken together.
Some supplements: fish oil, vitamin E, ginkgo.
Certain antibiotics and antifungals can raise warfarin's effect.

Food and warfarin (vitamin K)

If you take warfarin, vitamin K (in leafy greens) works against it. You don't have to avoid greens — just keep your intake consistent day to day, and tell your clinic before starting a vitamin-K supplement. Newer blood thinners (apixaban, rivaroxaban) aren't affected by vitamin K the same way.

Everyday care

Use a soft toothbrush and be careful shaving.
Tell dentists and surgeons you take a blood thinner before any procedure.
Wear a medical ID.

Warning signs: black or tarry stools, vomiting blood, pink/red urine, heavy bruising, or bleeding that won't stop. A serious fall or head injury on a blood thinner needs urgent evaluation.

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Important: This article is educational and not medical advice. It does not replace your pharmacist or prescriber. Always confirm decisions about your medicines with a qualified professional, and call your local emergency number for emergencies. In the U.S., Poison Control is 1-800-222-1222.