There are loans, but only grad plus or private loans. Nothing from the federal government to the best of my knowledge.
Or straight cash
There's always the 2nd BS degree option, but you need to be smart about it.
I'm attending Boston University and have had the majorirty of the second degree program classes waived b/c I've taken them previously. I'm repeating 4 classes and taking 8 new ones. BU's req is that I take a min of 12 classes in their system and I can graduate with the BS in Biology and use it as an informal post-bacc (2 semesters and a summer session) ... I did have to do my homework on this one though, but it was worth the effort.
Since I'm enrolled in a degree granting program, I'm receiving federal aid (sub and unsub'd stafford loans) + doing a few private student loans to help the cost of living + books b/c I won't be working.
to the OP, if you want it, after speaking with a lot of adults who are MD's, JD's, MS's, PhD's, who all work in the medical field... respectfully... if you can manage your finances in the future, you should be fine. It will pay itself out depending on the effort you put into it.
I'm 26, and NOT working... b/c I'm studying for the MCAT full time, volunteering, and prepping for this coming semester. So I'm going to be living off loans... I want this. It's all what you can handle. Personally, I don't think I can handle 3 classes, studying for the MCAT, and I'm volunteering 2 hours a day for 4 days a week so I can get rent cheaper (600/month) in Boston, Ma for my own room in a 4 bed room house... that's a long story and took a lot of fighting for. lol, but it's sooo worth it. Look into what I'm doing... it may help you financially. Federal loans are easier to deal with that private lending. Unless you can work while going to school... doing an informal post bacc by taking night classes will work too.
I wish you luck OP!