Clinical psychology & psychologists and research psychology & psychologists are very different from each other.  The clinicians are loosely psychodynamic, the researchers are tightly scientific. 

 Clinical psychology & research psychology are very different fields from each other. 

 The problem with psychiatry is that it is based on a science still in its infancy. We still know so very little about brain function or the bi-directional brain-mind interplay.

Psychopharmacologists are those who are or who consider themselves particular experts in the field of psychoactive drug therapy.