History behind Taiwan's ractopamine ban stretches back more than a decade

(ChinaPost.com.tw) - Ractopamine was originally used to cure asthma, but the effect was not significant. Ractopamine was, however, found to have the effect of increasing leanness in cattle and pigs. Thus, Eli Lilly and Company developed Paylean as a livestock feed additive, using ractopamine as the main ingredient. [...]