What type of drug is Oxandrolone that was found in the system of  Cinthya Domínguez in 2015?
Cinthya Domínguez Cinthya Domínguez (born 1982-10-29) is a female weightlifter from Mexico. She won the silver medal at the 2007 Pan American Games for her native North American country in the – 69 kg weight division. In 2015 Domínguez was suspended after she failed a drug test (found trace of Oxandrolone).
Zilpaterol Zilpaterol (zilpaterol hydrochloride; codenamed RU 42173) is a β adrenergic agonist. Under its trade 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 (three days in the US) before death for withdrawal, which allows the drug to mostly leave the animal's tissues.