Ractopamine

So I am reading an article about the US putting pressure on Taiwan to allow import of meat from the US that contains RACTOPAMINE. I think to myself “what is this stuff and why does a country that benefits so greatly from the US being so difficult. So I look it up on Wikipedia… 

Ractopamine is a drug that is used as a feed additive to promote leanness in pigs raised for their meat. Pharmacologically, it is a beta-adrenoceptor agonist. It is the active ingredient in products known as Paylean for swine and Optaflexx for cattle, developed by Elanco Animal Health, a division of Eli Lilly and Company, for use in food animals for growth promotion.

Ractopamine has been banned in the European Union, Taiwan and China.^[1]

^{Hmmmmm I think to myself. The Taiwan government is looking out for it’s peoples welfare. We make fun of China for coating children’s toys in lead(how stupid) but they decided this drug was too hazardous to enter their food system.}

Should I be worried about meat in the United States?