“In those days, Doc Susie used medications interchangeably between humans and animals. That was before pharmaceutical houses discovered a fundamental economic principle. Label a medication for human consumption, and a higher price could be charged.” ColoradoColorado DoctorsEarly Medicine Book:Doc Susie: The True Story of a Country Physician in the Colorado Rockies Source: Doc Susie: The True Story of a Country Physician in the Colorado Rockies