ginkgo (Ginkgo biloba)

What are the side effects of ginkgo (Ginkgo biloba)-oral?

Side effects of gingko biloba are

Possible serious side effects of gingko biloba include:

  • bleeding in the eye or brain,
  • severe bleeding after surgery,
  • severe allergic reactions,
  • difficulty breathing,
  • seizures (eating fresh gingko seeds), and
  • death (eating fresh gingko seeds).


The Stages of Dementia: Alzheimer's Disease and Aging Brains See Slideshow

What is the dosage for ginkgo (Ginkgo biloba)-oral?

  • Dosing may vary with the preparation (capsules, gels, extracts). Read manufacturer's directions before using this product.
  • Dementia: Take 120 – 240 mg per day in divided doses, 2 to 3 times a day.
  • Vertigo and tinnitusTake 120 – 160 mg per day in divided doses, 2 to 3 times a day.
  • Sexual dysfunctionTake 60 – 240 mg by mouth twice a day.
  • Premenstrual symptoms Take 80 mg by mouth twice a day, start on day 16 and continue to day 5 of next cycle.

Which drugs or supplements interact with ginkgo (Ginkgo biloba)-oral?


Is ginkgo (Ginkgo biloba)-oral safe to take if I'm pregnant or breastfeeding?


  • There are no adequate studies of gingko biloba to determine safe and effective use in pregnant women.
  • It is not known whether gingko biloba is excreted in breast milk.

What else should I know about ginkgo (Ginkgo biloba)-oral?

What preparations of ginkgo (Ginkgo biloba)-oral are available?

  • Ginkgo biloba is available as oral capsules, liquid soft gels, tea extract, and liquid extract.
  • Concentration of gingko biloba may vary from product-to-product due to multiple manufacturers producing various products.

How should I keep ginkgo (Ginkgo biloba)-oral stored?

There are many formulations of ginkgo biloba. Use the manufacturer's storage recommendations.

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Ginkgo (Ginkgo biloba, Fossil Tree, Kew Tree, Silver Apricot) is an herbal product used to improve memory problems of dementia and Alzheimer's disease; premenstrual syndrome; ringing in the ears; and some vision problems. Side effects include

Check with your health-care professional before taking any herbal supplements. Drug interactions, dosing, and pregnancy and breastfeeding safety should be reviewed prior to taking this supplement.

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Medically reviewed by John P. Cunha, DO, FACOEP; Board Certified Emergency Medicine


National Center for Complementary and Integrative Health. "Ginkgo." Updated: June 2013.<>

Medscape. "Ginkgo Biloba (Hers/Suppl) Eun-haeng, fossil tree, ginko biloba, ginkyo, icho, ityo, Japanese silver apricot, kew tree, maidenhair tree, salisburia, silver apricot."