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Ginkgo Biloba Dosage in Trials: What Researchers Used
Ginkgo biloba dosage in the largest trial was 120 mg of extract twice a day. That dose did not lower dementia rates. A Cochrane review split results at 200 mg a day. These are research numbers, not instructions, and your bottle may differ.
Written by the MemoPryl label deskUpdated · 4 min read
What ginkgo biloba dosage did the big trial use?
The big trial used 120 mg of ginkgo extract twice a day, or 240 mg in total, against placebo.
It enrolled 3,069 community volunteers aged 75 or older. Followed for a median of 6.1 years, 1,545 took ginkgo and 1,524 took placebo (DeKosky 2008, GEM trial, JAMA).
The authors concluded that this dose was not effective in lowering the overall incidence of dementia or Alzheimer disease. The groups did not differ in a meaningful way.
How did the Cochrane review treat dose?
It split trials into groups below and above 200 mg a day, and the two groups looked very different.
For cognition at 22 to 26 weeks, the any-dose result was small. Doses under 200 mg a day showed almost no effect. Doses over 200 mg a day showed a larger one (Cochrane 2009, ginkgo and dementia).
Do not read that as "higher is better". When two studies were left out, the any-dose result fell to nearly nothing.
| Source | Amount | Takeaway |
|---|---|---|
| Large dementia trial | 120 mg twice a day | No drop in dementia rates |
| Cochrane, under 200 mg a day | Pooled doses | Almost no effect |
| Cochrane, over 200 mg a day | Pooled doses | Larger effect, fragile result |
Does a higher ginkgo dose raise risk?
The sources do not give a safe ceiling, so assume more is not automatically safer.
NCCIH notes ginkgo may raise bleeding risk in people taking anticoagulants such as warfarin (NCCIH, Ginkgo). MSK lists spontaneous bleeding reports and seizures in people prone to them (MSK, Ginkgo).
Keep taking any prescribed medicine, and ask your doctor or pharmacist before you start a new supplement. Ginkgo, warfarin, aspirin and vitamin E can each thin the blood (FDA, Mixing Meds and Supplements).
MemoPryl: capsules in 2, 3 or 6 bottlesRead the bottle · check your medicines · 60-day window (confirm)
See packsHow do I check the ginkgo amount on a bottle?
Find the facts panel, then look for ginkgo with a milligram figure and the serving size beside it.
Multiply by the servings in your day, then compare with the study numbers, remembering that extract type and duration can differ.
Type the capsules a day printed on your bottle to see how many days your bottles cover.
Arithmetic only: no dose for MemoPryl was supplied, so this site never suggests one. Use the number on the bottle you receive.
If the panel hides ginkgo inside a blend, the amount is unknown.
What does this mean for MemoPryl?
You cannot compare MemoPryl with these trials, because no amount is printed on any image we have.
Ginkgo biloba leaf is one of six names linked to MemoPryl through a sibling pack, unconfirmed for your bottle. Look at the supplement facts page for every missing line, and the how to use page for directions.
Thinking about MemoPryl?Check your medicines with a pharmacist first. Prices and the 60-day window are confirmed at checkout.
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FAQ01
MemoPryl questions people ask
How much ginkgo biloba is in MemoPryl?
Unknown. No milligram amount is printed on either bottle image we hold. Ginkgo is one of six names linked to MemoPryl through a sibling pack, unconfirmed for your bottle, so read the panel on arrival.
Is 240 mg of ginkgo a day normal?
It is the total used in the large trial: 120 mg twice a day. That does not make it a recommendation. Ask your doctor or pharmacist what suits you, particularly if you take blood thinners.
Does ginkgo take weeks to work?
The Cochrane review looked at cognition at 22 to 26 weeks. Its pooled effect depended on a few studies, so a long wait does not guarantee a result. Track how you feel and talk to your doctor.
Who wrote this02
Written and reviewed by
Pages built from the bottle images, the seller's product notes and linked NIH, FDA, FTC and peer-reviewed sources.
Last updated . Learn about our editorial standards and how we check reviews. This website is run by Official stocking desk for MemoPryl, not by the manufacturer or the distributor of the bottle. We make money when you buy through our order links.
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