Tebonin is a brand name pill manufactured by the German company, Dr. Willmar Schwabe GmbH & Co KG. Tebonin is based on an extract from the ginkgo biloba tree with the company claiming that a pill a day will relieve tinnitus (the ringing sound some people have in their ears), dizziness and even improve mental alertness. The promoters claim the drug improves "impaired micro-circulation", reduces "free radicals" and "promotes optimum cell function." According to the company 8 million pills are consumed every day