Salonpas is a brand name of a line of over-the-counter pain relieving products manufactured by Hisamitsu Pharmaceutical Co., Inc. of Tosu City, Japan. Introduced to the Japanese market in 1934, Salonpas is now sold in approximately fifty countries. The largest markets for the products are Japan and other Asian nations such as Vietnam, Philippines, Malaysia, Taiwan. According to Hisamitsu, approximately 20 billion Salonpas transdermal patches have been sold in the last 20 years.
The Tokyo Marathon is an annual marathon sporting event in Tokyo, the capital of Japan.