well you are just in luck..cause i have the Drexel packet in my hand and it clearly states that (verbatim..lol)
MSP requirements:
Official MCAT scores are required for students who have taken the exam. For students who have not taken the MCAT, official GRE scores are required instead. MCAT scores in the low to mid 20s, as well as a 1200 GRE General Test Score, are considered appropriate for the program.
Now you have to decide on how you are going to approach the situation. They assume some people have taken the MCATs already but was really low so thats why they accept those caliber in the program. I am sure you are well aware that MSP not only improves your science background but also MCAT scores.
When do you plan to apply to the program??