Zilmax maker plans to relaunch cattle drug

30/10/2013
US drugmaker Merck & Co plans to sell its Zilmax animal feed additive in the US and Canada once it completes an audit of how the muscle-building cattle feed product is used in the agriculture sector.

A spokeswoman for the company's Merck Animal Health unit told Reuters that while "it is too early to speculate on when we will resume sales for Zilmax in the US and Canada" Merck was pushing forward with its quality control programme to ensure the weight-adding drug is being properly used.

Merck halted sales of Zilmax in August after Tyson Foods said it would stop accepting Zilmax-fed beef after cattle were observed arriving for slaughter with signs they were having difficulty walking or moving. Merck says the product is safe.

The drug company has formed an advisory board that includes representatives from meat processors, cattle feeder operations, producers, veterinarians, academics and industry consultants.