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Sugar Defender and Blood Thinners: Ginseng, Green Tea and Grapefruit Seed
Sugar Defender and blood thinners have not been studied together. Ginseng, guarana and coleus each carry a clotting or bleeding flag in the sources, and a grapefruit seed extract case raised one warfarin patient's INR to 7.9. We cannot call any pairing safe or unsafe. Ask your prescriber or anticoagulation clinic first.
Written by the Sugar Defender label deskUpdated · 4 min read
Short answer01
Is Sugar Defender safe with blood thinners?
No source can answer that. The drops were never tested with warfarin or any other blood thinner.
The label only says to consult your physician if you take other medication. What we can add is a line-by-line read of the 23 label lines for clotting and bleeding flags.
The flags02
Which ingredients carry a bleeding or drug flag?
Four lines do: Panax ginseng, guarana, coleus and grapefruit seed extract.
| Label line | At most per mL | What the source says |
|---|---|---|
| Guarana seed (3rd) | 67 mg | May raise bleeding risk with warfarin; relevance undetermined (MSKCC, Guarana) |
| Coleus root (9th) | 22 mg | May raise bleeding risk with warfarin and other blood thinners (MSKCC, Forskolin (Coleus forskohlii)) |
| Grapefruit seed (11th) | 18 mg | See the case below (Brandin et al., Eur J Clin Pharmacol 2007) |
| Panax ginseng (12th) | 17 mg | May interfere with blood clotting (NCCIH, Asian Ginseng) |
Ceiling = 200 divided by the place number. The real amounts are hidden.
Grapefruit seed03
What is the grapefruit seed extract case?
Swedish regulators traced a warfarin patient's INR of 7.9 to products sold as grapefruit seed extract, and found none held the real extract (Brandin et al., Eur J Clin Pharmacol 2007).
All three contained a synthetic preservative that strongly blocked drug-processing enzymes in lab tests. The lesson is about quality, not the fruit. A label that says grapefruit seed extract may not hold it.
Sugar Defender names no maker and publishes no lab report, so nobody can say which kind sits in its blend. Do not confuse this with grapefruit juice, which is a separate drug issue.
Sugar Defender: from $49 a bottle60 mL · 2, 3 or 6 bottles · free US shipping on 3 or 6 · 60-day money-back guarantee
See packsGreen tea04
What about green tea and warfarin?
The green tea source we rely on lists a different drug, the beta-blocker nadolol, and no warfarin entry for the leaf (NCCIH, Green Tea).
That is a gap in one source, not a clearance. Green tea is 7th on the label, at most 29 mg per mL, and it adds caffeine.
A blood thinner dose is set by your clinic from lab results. Never change it for a supplement. Read more on the ginseng page and the medicines guide.
Where can I order Sugar Defender?
If your care team clears it, Sugar Defender sells in three packs with a 60-day money-back guarantee.
Sugar Defender: from $49 a bottle60 mL · 2, 3 or 6 bottles · free US shipping on 3 or 6 · 60-day money-back guarantee
See packs| Pack | 2 bottles | 3 bottles | 6 bottles |
|---|---|---|---|
| Bottles | 2 | 3 | 6 |
| Total mL (servings) | 120 mL (120) | 180 mL (180) | 360 mL (360) |
| Price per bottle | $79 | $69 | $49 |
| Total | $158 | $207 | $294 |
| Days at the label's 1 mL a day | 120 | 180 | 360 |
| Per day at 1 mL | about $1.32 | about $1.15 | about $0.82 |
| Days as the order page counts | 60 | 90 | 180 |
| Per day on that count | about $2.63 | about $2.30 | about $1.63 |
| Shipping (US) | Added at checkout | Free | Free |
| Digital e-books | None | Two | Two |
| Guarantee | 60 days | 60 days | 60 days |
FAQ05
Sugar Defender questions people ask
Does ginseng interact with warfarin?
The source says Asian ginseng may interfere with blood clotting and interact with some medicines (NCCIH, Asian Ginseng). Sugar Defender holds at most 17 mg of it per mL. Whether that matters to a warfarin patient is a question for the clinic.
Why does an INR matter for supplements?
INR is a lab number clinics use to watch warfarin. In the Swedish case, it reached 7.9 after products labeled as grapefruit seed extract (Brandin et al., Eur J Clin Pharmacol 2007). Tell the clinic about any new product so it can interpret changes.
Should I tell my pharmacist about herbal drops?
Yes. Bring the label or a photo of the Supplement Facts panel. Pharmacists check herb and drug combinations, and the 23 label lines give them a full list to check.
Who wrote this06
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by Isugardefender, a Sugar Defender U.S. shop, not by the manufacturer or the distributor. We earn money when you buy through our order links.
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