I can't really see an advantage to this, unless you would like to spend an additional four years earning a degree that you won't use. I suppose if you got a Pharm.D., practiced for a few years and decided that medicine was really where you belonged the adcoms might be interested because you have "life-experience." But there is also a debate on whether or not P.A.'s should become M.D.'s. Obviously there are exceptions, but I think that most people think the answer to the P.A. question is "no". I'm guessing that many would feel the same about a Pharm.D. going into med school right out of pharmacy school. Good Luck.