Letrozole belongs to a class of drugs known as nonsteroidal aromatase inhibitors. Letrozole decreases the amount of estrogen in the body. Because many types of breast cancer cells require estrogen to grow, this drug may slow or stop the growth of cancer cells. Letrozole is given as a tablet taken by mouth.
Earnings as a Veterinary Surgeon. The lowest-earning 10 percent of veterinarians earned below $46,610 in May 2008, and the highest-earning 10 percent earned above $143,660, according to the BLS.
According to the Bureau of Labor Statistics, the median annual vet technician salary is $31,800. The lowest 10 percent of reported incomes was averaged at $21,890 while the top 10 percent of earners took home an estimated $47,410. The state with the highest average salary is Alaska with an annual mean salary of $42,090.