Coincidentally the NY Times reported on the deaths of two men who developed drugs for treating mental states.
The articles are:"Frank Ayd, 87, Who Advanced Thorazine Use, Is Dead,", by DOUGLAS MARTIN, March 21, 2008.
Dr. Ayd studied his patients’ responses to early antipsychotic and antidepressant drugs, helping to give birth to the field of psychopharmacology.
and: "Frank Berger, 94, Miltown Creator, Dies," By BENEDICT CAREY, March 21, 2008.
Dr. Berger helped start the modern era of drug development with his invention of Miltown, the first mass-market psychiatric drug and a forerunner of Valium and Prozac.
These two obituaries show what a short time has passed since mind and mood altering drugs, besides alcohol, were developed and have become common, helping millions of people, but leading to many debates over the proper use of them. For thousands of years, medicine used some basic drugs and these didn't change much. In the 19th and 20th century, that was no longer true, and a new branch of the history of medicine opened up.