<p>I’d say major in chemistry. You’ll have much more options if you choose not to go into drug development than if you majored in something more “narrow” like pharmacy (I assume this is not the PharmD program for becoming a pharmacist). As already mentioned, synthetic organic chemistry is very important in drug development. You’ll obviously have to get a graduate degree, so the best option is to major in chemistry (some schools also have a medicinal chemistry major), see if they have some advanced organic chemistry courses available, see if one of the professors at your school does synthetic research so you can actually see what they do (perhaps you could also check out one of the many summer research programs around the country), then apply to PhD chemistry programs, looking for faculty that do synthetic organic chemistry research.</p>