Forest and 99% of all Pharmaceutical companies DO require a 4-year degree. I have only heard of BI (Which is having layoffs today) and Abbott that may not.
10 years ago, the "Pharmaceutical Industry" was a respected field. Today, it is just a notch above Enterprise (no disrespect to enterprise) as DM's and RD's will tell you that "Forest, has NEVER had layoffs".... which is true for now. Also, they will say "We will start you at a fair salary $52k without experience, and a "Golden Opportunity" to make a lot of money in commission.
If you think "A lot of money is $5-$10k per year" then by all means apply. Your now talking $60-$70K MAX in your first couple years, and that is if by some chance you are in an area where the drugs are actually covered under MC plans.
You will be treated like a kid, having inexperienced DM's riding with you once every 6 weeks, telling you how much you suck, pissing off the offices you are attempting to build a relationship with. Your degree means NOTHING, it can be in english or political science, they don't care. If you want the HONEST truth about the pharmaceutical industry? Ask your primary care Doctor what he or she thinks about Pharma reps. That will give you a REAL perspective of what this industry has turned into.
Best of luck, and remember that this site ANYONE can make posts, typically they are all negative and juvenile, but that just gives you another perspective of the kind of people you will be working with if you are hired.