Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Psychopharmacological medication over time. Shown are the yearly prescription rates of psychopharmacological drug classes. The prescription rates of lithium, antiparkinsonian medications, and hypnotics decreased over time (linear regression analysis: all P < .01).
