A contract pharmaceutical sales representative handles the distribution, education, and sales of various pharmaceutical drugs. In this position, your responsibilities involve the development of contracts with health care professionals and the medication manufacturer. You work in a specific district or region and visit offices to encourage the prescription of a particular medicine. Your duties may include working with a specialized class of drugs, assisting with analysis and research based on sales in a specific area, and taking the lead on introducing new medications, including the cost, benefits, and possible side effects. As a pharmaceutical sales rep, you can work freelance or partner with a company.