FROM ESPN:

Suspended Sprint Cup driver AJ Allmendinger tested positive for amphetamines, his business manager confirmed Wednesday. Tara Ragan, the vice president of Walldinger Racing Inc., said Allmendinger was told when initially suspended by NASCAR on July 7 that amphetamines were found in his drug testing sample taken a week earlier. She said the term was so broad that she opted to refer to it as a stimulant.

Brand names of medications that contain or metabolize into amphetamines include Adderall, Dexedrine, Dextrostat, Desoxyn, Didrex, ProCentra and Vyvanse. Amphetamines also are used recreationally as a performance enhancer, often referred to on the street as “speed.” When overused, they can be psychologically and physically addictive. “With amphetamines, there are a whole slew of things it can be,” Ragan told ESPN.com. “When we say we don’t know what it is, what we were trying to ascertain is what is it in that grouping? In our head, we don’t know. In fact, when the (medical review officer) first called and said he tested positive for amphetamines, the first thing we said was, ‘What does that mean?’” Ragan said the hope is Dr. David Black, who runs Aegis Sciences Corporation in Nashville, Tenn., which tested Allmendinger’s “A” and “B” urine samples, will help clarify that Thursday when Allmendinger talks to him to be assigned a health care facility for assessment. Meanwhile, Ragan said there are plans to have Allmendinger tested again by an independent laboratory to see whether amphetamines still show up in his system. “We weren’t being evasive,” Ragan said. “In my head, no, we didn’t know what the drug was. Amphetamines was too general for us when trying to figure out what it is.”

Source: ESPN