Exemptions for ADHD drugs are down among Major League Baseball Players:

A record low 54 major league players were given permission to use medication for attention deficit hyperactivity disorder, down from 61 last year and 119 in 2013.

The total was revealed Monday in the annual report of Thomas M. Martin, the independent program administrator of the drug program for Major League Baseball and the players’ association. The most-used medications to treat ADHD are Adderall, Ritalin and Vyvanse.

ESPN.com

There is no reason given. I wonder if fewer players feel they need it, or if MLB is being more strict about allowing the exemptions.