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Ginkgo biloba

Scientific Name(s): Ginkgo biloba L.
Common Name(s): Ginkgo, Ginkyo, Kew tree, Maidenhair tree, Yinhsing (Japanese silver apricot)
Learn about the potential benefits of Ginkgo biloba including contraindications, adverse reactions, toxicology, pharmacology and historical usage.
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Drug Information:
Ginkgo has been studied extensively in diverse medical conditions. Findings from large trials have been pivotal in evaluating the efficacy of G. biloba extracts; however, there is not enough quality evidence to support the use of ginkgo for any indication. Evidence is lacking to support a protective role in cardiovascular conditions and stroke. Ginkgo's place in therapy for dementia seems limited, and a role in schizophrenia has not been established. Additionally, data do not support enhanced cognitive function resulting from G. biloba use in healthy individuals. Although interest exists in chemotherapeutic applications, safety concerns persist. Learn more

Ginkgo biloba Side Effects

Ginkgo Biloba Side Effects

Note: This document contains side effect information about ginkgo. Some of the dosage forms listed on this page may not apply to the brand name Ginkgo Biloba.

Applies to ginkgo: oral capsule, oral tablet


Follow all directions on the product label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using ginkgo (the active ingredient contained in Ginkgo Biloba) and call your healthcare provider at once if you have:

  • easy bruising, unusual bleeding (nose, mouth, vagina, or rectum);

  • any bleeding that will not stop;

  • a seizure (convulsions); or

  • weak pulse, weak or shallow breathing, feeling like you might pass out.

Touching or handling ginkgo fruit pulp can cause a severe skin reaction including redness, swelling, blistering, and itching for up to 10 days.

In animal studies, ginkgo leaf extract increased the risk of thyroid cancer and liver cancer. However, very high doses are used in animal studies. It is not known whether these effects would occur in people using doses recommended for human use.

Common side effects may include:

  • upset stomach, constipation;

  • headache, dizziness;

  • fast or pounding heartbeats;

  • mouth irritation; or

  • skin rash.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

More about Ginkgo Biloba (ginkgo)

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  • Drug Interactions
  • 4 Reviews
  • Drug class: herbal products

Professional resources

Related treatment guides

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Editorial References and Review

Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.

Source: Drugs.com Ginkgo Biloba