VIENNA (Reuters) - Harry Lime, peddling diluted penicillin in post-war Vienna in the 1949 film “The Third Man”, was an early pioneer: today the counterfeit medicine business has gone global, fuelled by the “perfect channel” of the Internet, according to a U.N. drug watchdog.In many countries, the abuse and trafficking of prescription drugs, including stimulants and painkillers, now equals or exceeds the use of illicitly manufactured heroin, cocaine, amphetamine and opioids, according to the Vienna-based International Narcotics Control Board (INCB).