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.
Ranges. As of May 2011, veterinarian salaries ranged from a low of $50,480 per year, or $24.27 per hour, to a high of $141,680 annually, or $68.11 hourly, according to the BLS. The mean wages for 55,410 vets was $91,250 yearly, or $43.87 per hour.To earn these salaries, veterinarians diagnose and treat the health problems of animals. They may prescribe medication, test for and vaccinate against diseases, perform surgery, and advise pet owners about general care.he mean wages for 55,410 vets was $91,250 yearly, or $43.87 per hour. To earn these salaries, veterinarians diagnose and treat the health problems of animals. They may prescribe medication, test for and vaccinate against diseases, perform surgery, and advise pet owners about general care.