Miguel Tejada suspended 105 games for amphetamine use (UPDATE)
If that 105 number seems odd, it's because Tejada tested positive twice in a short period of time. According to the Joint Drug Agreement, a first positive amphetamines test only triggers follow-up testing. A second positive is a 25 game suspension (like what Carlos Ruiz served to start this season), while a third is 80 games. Tejada has tested positive once before, then tested positive twice this year in close proximity. Thus, the two penalties were combined to get 105. Now, a quick look of the JDA doesn't show anything that says MLB can do a concurrent penalty like that, but at least baseball is somewhat following it's own regulations for once.
Amphetamines were rampant in baseball ever since the 1960s if not earlier. As anyone who read Ball Four can attest, "greenies" were a constant presence in every major league clubhouse, and most of the stars of the 60s and 70s are linked to their use.
For the 39 year old Tejada, this could be it for his up-and-down career. He's currently on the 60 day DL and is reportedly considering retirement. Tejada was the 2002 AL MVP, but has been plagued with steroid controversy, particularly when Rafael Palmeiro blamed his positive test on a shot given to him by Tejada. He also plead guilty to lying to Congress about what he knew about PEDs in 2005.
UPDATE: In an interview with ESPN Deportes Enrique Rojas, Tejada stated that he tested positive for Adderall. According to Tejada, he had a Therapeutic Use Exemption to treat ADD for the last five years, but MLB revoked the exemption this past April. He is not considering retirement.