What classes you need to take to be a veterinarian?

That depends on exactly what degree you are looking for. You can get a degree in veterinary technology or a degree in veterinary medicine. These are 2 very different degrees.

The degree in veterinary medicine is a 4 year degree with a specific set of courses that must be completed. The class names will vary from college to college, but you can find a list of the curriculum listed on the college/university websites that offer degree program. Before applying to a college of veterinary medicine you must already have a 4-year (bachelors) degree in an acceptable associated area such as Biology. A degree in veterinary medicine is required in order to be licensed or practice as a veterinarian.

A degree in veterinary technology can be earned in 2-4 years, depending on the type of degree sought. Most states require a 2 year (associates) degree in order to work as a veterinary technician, but there are several colleges that offer 4 year (bachelors) degree programs. Again, the names of courses required for this degree will vary from college to college so you would need to look at the courses required for the particular college you wanted to attend.