Zilpaterol

Chemical compound

Zilpaterol is a β2 adrenergic agonist. Under its brand name, Zilmax, it is used to increase the size of cattle and the efficiency of feeding them. Zilmax is produced by Intervet, a subsidiary of Merck & Co., and marketed as a "beef-improvement technology". Zilpaterol is typically fed in the last three to six weeks of cattle's lives, with a brief period before death for withdrawal, which allows the drug to mostly leave the animal's tissues.

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