Tara Ragan, Vice President of Allmendinger’s Walldinger Racing, revealed that the Penske Racing driver, “tested positive for a stimulant” in a screening conducted more than a week ago at Kentucky Speedway, but did not identify the specific substance involved. “He has no idea why the first test was positive,” said Ragan, “and he has never knowingly taken any prohibited substance. AJ is collecting his medicines and supplements for testing to determine whether an over the counter product caused his positive test.”
She said Allmendinger “respect(s) NASCAR's testing program, and he has requested that his "B" sample be tested as part of the process of getting to the bottom of this. We will have the opportunity to review all of the scientific data surrounding the test following the "B" sample test, but our understanding is that AJ's test was slightly above the threshold.”
She said the driver has not been told when his “B” sample will be tested.