Japanese anti-itch medicine Muhi cream has been recognized by the Guinness World Records as the longest-selling drug of its kind, having marked 100 years since its launch.An official adjudicator of the Guinness records on Saturday handed a certificate marking the record as the longest-selling over-the-counter bite and sting anti-itch product brand to the president of the medicine's maker Ikeda Mohando Co. at an event held in Toyama Prefecture, central Japan.According to the pharmaceutical firm based in the prefecture, the first version of Muhi went on sale in 1926 as a petroleum jelly ointm…READ FULL ARTICLE