Most Executive MBA (EMBA) programs are roughly 2 years. However, there are several schools that offer a One-Year Executive MBA (EMBA) option. Once such example is Saint Joseph's University Haub School of Business. They offer a standard 20 month EMBA and also a one-year EMBA. You will save on tuition (and time) by going with the one-year model. Plus, you can continue to work while you're taking classes, so you won't be giving up any income.
Speaking of Saint Joseph's University, they also offer an Executive Pharmaceutical Marketing MBA Program. This program is offered in two different formats: classroom and online. If you choose the classroom option, then you can complete this EMBA in 2 years or you can take up to 6 years to complete it. If you choose the online option, then you'll be locked into a cohort and you'll finish the EMBA in 2 years. Students are required to complete 24, two credit courses in various pharmaceutical business modules. All courses are at 2.0 credits each, for a total of 48 credits. The core business courses are designed to ensure that all students in the program have that common body of knowledge necessary for advanced study in business.
Are you thinking about business school? There are plenty of options out there, so make sure to do your research.