While Ginkgo biloba extract is available in any health food store and many discount stores, individuals with tinnitus should exercise care when selecting a product. Due to the lack of regulation of the herbal and vitamin markets within the United States, most ginkgo products are not what they appear to be.
https://www.tinnitusformula.com/library/why-not-all-gingko-products-work-for-tinnitus/
Protocol for Using Gingko Biloba: A standard recommended dosage of ginkgo biloba is 40-80mg, 3 times a day (up to 240mg/day). The study which shown gingko biloba to be effective in the treatment of antidepressant-induced sexual dysfunction was an average of 209mg/day. Ginkgo can be purchased in a number of different forms, including tablets, capsules, dried leaves (for tea) and extracts.
http://virilityprotocol.com/gingko-biloba-effective-treatment-for-sexual-dysfunction/
Standardized ginkgo leaf extracts, such as EGb 761 ( Tebonin forte , Schwabe), have been used in clinical trials for cognitive and circulatory disorders at daily doses of 120 to 240 mg of extract. 16 , 17 , 39 Extracts are usually standardized to 24% flavones and 6% terpene lactones.
https://www.drugs.com/npp/ginkgo-biloba.html
Additionally, 87.5 milligrams of ginkgo extract has been injected in the blood daily for two weeks. For macular degeneration (eye disease), up to 480 milligrams of ginkgo or ginkgo extract has been taken in single or divided doses by mouth for up to six months (ginkgo extract LI 1370, EGb 761®).
http://www.mayoclinic.org/drugs-supplements/ginkgo/dosing/HRB-20059541
The German Commission E (the equivalent of our FDA) is the world's foremost authority on herbal supplements. The standardized Ginkgo Biloba Extract was invented in Germany nearly 40 years ago. The Commission E rates Ginkgo as positive for the treatment of tinnitus and recommends a dosage of 480 mg per day. They also state that there are no side effects or harmful interactions with other medications and that there is no toxic limit; i.e., you cannot overdose on it.
https://www.tinnitusformula.com/library/why-not-all-gingko-products-work-for-tinnitus/
For dementia syndromes: a dosage of 120-240 mg per day of ginkgo leaf extract, divided in two or three doses. For cognitive function improvement in healthy young people: dosages of 120-600 mg per day. For Raynaud’s disease: a dosage of 360 mg per day of ginkgo leaf extract, divided into three doses. To relieve walking pain in people with intermittent claudication: a dosage of 120-240 mg per day of ginkgo leaf extract, divided into two or three doses, has been used; however, the higher dose may be more effective.
http://answers.webmd.com/answers/1185004/what-is-the-recommended-dosage-for
In a study in 10 healthy men taking tolbutamide 125 mg alone and after receiving G. biloba extract 120 mg 3 times daily for 28 days, pretreatment with G. biloba reduced tolbutamide AUC 16% and attenuated the blood-glucose lowering effect of tolbutamide. 96 G. biloba may increase the metabolism (CYP2C9) of tolbutamide.
https://www.drugs.com/npp/ginkgo-biloba.html
If you are taking ginkgo biloba supplements for memory impairment, cardiovascular function or poor circulation, take 120 to 240 mg per day in two or three divided doses. If you suffer from tension glaucoma, use 40 mg of ginkgo biloba daily for up to 4 weeks. To relieve symptoms of premenstrual syndrome, take 80 mg of ginkgo biloba during your menstrual cycle. For peripheral vascular disease, vertigo or tinnitus, take no more than 120 mg per day in divided doses.
http://www.livestrong.com/article/472863-what-is-the-recommended-dosage-for-gingko-biloba/
For vertigo: dosages of 120-160 mg per day of ginkgo leaf extract, divided into two or three doses. For premenstrual syndrome (PMS): 80 mg twice daily, starting on the sixteenth day of the menstrual cycle until the fifth day of the next cycle.
http://answers.webmd.com/answers/1185004/what-is-the-recommended-dosage-for
Adults (over 18 years old) For age-associated memory impairment (AAMI), 240-600 milligrams of ginkgo extract (EGb 761® or ginkgobene®) has been taken by mouth for up to 42 weeks. Ginkgo in a dosage of 0.9-1.9 milliliters has been taken by mouth three times daily.
http://www.mayoclinic.org/drugs-supplements/ginkgo/dosing/HRB-20059541
what daily dosage of ginkgo biloba is recommended
The recommended daily dose of Ginkgo Biloba is 40 to 80 milligram, 3 times a day. The daily dosage of ginkgo biloba is 40 to 80milligrams, 3 times a day. Ginkgo biloba dosage of 40 to 80 milligrams, 3 times a day is recommended.