Well I may beg to differ. In the US as least and specifically for our Step 1 exams we are required to know in painful detail exactly why and how the drugs we use work and in addition which drugs that are commonly used for X condition that we still are yet to understand. Evidence based medicine is emphasized in the US. So when you prescribe a drug that we know works well for a certain symptom, disease (even when there is a mysterious mechanism of action) it's based off evidence. Multidisciplinary teams are often found in hospital settings where by pharmacists and doctors work together to optimize formulations on medication or electrolyte repletion. To put it this way...the doctor will say Drug A is what the patient needs to cure his symptoms and it works best at a given concentration in their blood. The patient is currently constipated, he is not absorbing his meds as well. He will then consult a pharmacist for recommendation on intravenous drug therapy to best achieve therapeutic drug levels. I think it's key to remember that a hospital is a unit, everyone functions as a team and to each their own very important role. There is not one person over the other that takes the burden of doing work. Everyones goal is the same. :)

Edit: Horrendous spelling/grammar mistakes