Merck takes steps to return Zilmax to US cattle market

Merck & Co. is taking steps to resume sales of its controversial cattle feed additive Zilmax by changing the way the drug is administered, hoping to recapture some market share in the beef industry, where the U.S. herd has the fewest animals in more than 60 years. The U.S. Food and Drug Administration has approved adjustments to the drug’s label that would allow veterinarians and feedlot operators to use a lower dose and alternative method of feeding the drug to beef cattle, Merck said Wednesday. Read more at Reuters…