Why garlic matters with blood thinners
Garlic may reduce how easily blood platelets stick together. On its own that's usually minor, but combined with medicines that already thin the blood, it may increase the risk of bruising or bleeding.
Medicines to ask about
Speak to your doctor or pharmacist first if you take:
- Warfarin
- Apixaban, rivaroxaban or dabigatran
- Clopidogrel, prasugrel or ticagrelor
- Low-dose aspirin
- Regular anti-inflammatory painkillers
Before surgery or dental work
Tell your surgeon, dentist and anaesthetist about any garlic supplement. You may be asked to stop it for a period beforehand.
If your doctor says it's okay
Stay safe by:
- Sticking to the label dose
- Not combining several garlic products
- Watching for unusual bruising, nosebleeds or bleeding gums
- Keeping up any blood tests your doctor orders (such as INR for warfarin)
Read next: Side effects · Aged garlic dosage
Frequently asked questions
Can I take VitalFlush with warfarin?
Only after speaking to your doctor. Garlic may add to warfarin's effect on bleeding.
Is eating garlic in food a problem?
Normal amounts in cooking are generally considered fine. Supplements are more concentrated. Ask your doctor if unsure.
What signs of bleeding should I watch for?
Unusual bruising, nosebleeds, bleeding gums, blood in urine or black stools. Contact your doctor promptly.

