Psychiatrists and Clinical Psychologists, both intervene on mental health, in spite of having different but complement approaches.
The psychiatrist is as a medical degree, and his training focuses on biological and physiological functioning of human beings, and treats mental illness using psychoactive drugs. The psychologist searches for a comprehensive and inclusive vision of human beings, and his intervention is based on psychotherapeutical techniques.
Each person has a different life experience and different perspectives. Both psychiatrists and psychologists are aware of these differences, and intervene according to them.
Antidepressants and anxiolytics are the drugs most consumed by the population. In many situations it is beneficial to the person to combine drug therapy with psychotherapy.