Main Constituents
- terpine lactones
- flavonoids
Medicinal Activities
- anticoagulant
- antioxidant
- improves blood circulation
- tonic
Common Uses in Dogs
Ginkgo
Ginkgo biloba
(Ginkgo family)
Ginkgo is an excellent nervous system tonic for
older dogs as it improves blood circulation and increases blood flow to the brain, therefore reducing the likelihood of stroke. It is a "free-radical scavenger" and it strengthens brain cells. It is effective in treating "dimming mind syndrome" (dementia) and
depression. Also, many disorders such as
urinary incontinence, chronic digestive upset,
seizures, and behavior disorders are as a result of neurological dysfunction which might be corrected by the proper use of ginkgo.
The herb also acts on blood vessels - it strengthens and maintains the elasticity of blood vessels, and improves blood circulation by preventing or reducing the release of PAF (platelet-activating factor), the substance that makes the blood "sticky". Therefore, ginkgo is effective in protecting dogs from developing degenerative diseases as a result of poor circulation.
Precautions
Excessive doses of ginkgo may result in diarrhea or nausea.
Dogs with blood-clotting disorders or that are taking blood-thinning medicine should not be given ginkgo.
Availability
Various preparations (such as tincture, tea, capsule) are available at most health food stores and herb retailers.
Get herbs (fresh and dried) and tinctures from:

References
J.A. Duke,
The Green Pharmacy Herbal Handbook: Your Comprehensive Reference to the Best Herbs for Healing (Rodale Books, 2000).
R. Kidd,
Dr. Kidd's Guide to Herbal Dog Care (Storey Publishing, 2000).
M.L. Wulff-Tilford and G.L. Tilford,
Herbs for Pets (Bowtie Press, 1999).