Different employers will require different levels of education to allow you to work for them. But generally, to become a pharmaceutical sales rep, you'll likely need a bachelor's degree. According to a report by MedReps in 2018, 98% of the reps surveyed have a four-year college degree or higher. So the least amongst them had a four-year bachelor’s degree certificate. From this report, we can easily deduce that to become a pharmaceutical sales rep, you must have acquired a BSc. in any related course. In a nutshell, you cant become a pharmaceutical rep without a degree.