The other thing is: medicine assumes you are a white male. If you are not, you're some sort of freak they don't know what to do with. A lot of "it's all in your head" illnesses are strongly typed female. It's a serious problem.
http://freakonomics.com/podcast/bad-medicine-part-2-drug-tri...
Race wouldn't really play a part here I don't think unless a medicine happened to effect a race differently (e.g. African people often have sickle-cell anemia, so you do have to consider race sometimes as well).
But the user above actually said something differently, in that people are treated differently. Like I said, doctors are trained to treat everybody regardless of race/ gender. Clinical trials based on variables of participants, and the general treatment of individuals is completely different.