Doctor: Mayfield told of substance

CHARLOTTE, N.C. — The administrator of NASCAR’s drug-testing program said Monday he personally told Jeremy Mayfield what banned substance was found in his positive test.

Dr. David Black, CEO of Aegis Sciences Corp., which runs the testing program, said he specifically identified the drug in several conversations with the Sprint Cup driver over a three-day period after NASCAR suspended him.

“I spoke with him about his positive test result on the day he was suspended, and I spoke to him directly about the test result,” Black said. “Yes, by name of what he tested positive for.”

On Saturday, Mayfield said he never was told what drug caused the positive test and has yet to receive a copy of the results.

Black said he was not sure if Mayfield has seen the test results because a copy would be issued by NASCAR, not Aegis. Mayfield maintains the use of a prescription drug with over-the-counter allergy medication Claritin-D led to his positive result.

Black repeatedly has rejected that explanation.

“I did address specifically and explicitly what he tested positive for, and that led to the discussion of his over-the-counter and prescription use,” Black said. “I explained carefully and completely that his positive test result was not related to an over-the-counter or a prescription. They were not the cause, and could not be the cause, of his result.”

NASCAR has refused to reveal the substance. Citing that policy, Black also declined to identify the drug.

NASCAR chairman Brian France has described Mayfield’s test as a “serious violation” of the substance-abuse policy, and he categorized that as use of a performance-enhancer or a recreational drug.

A person familiar with the test results has said the positive test was not for performance-enhancers, meaning the positive test resulted from an illegal recreational drug.

Mayfield, who watched a portion of Saturday night’s All-Star events from the top of a hospitality suite in the infield of Lowe’s Motor Speedway, told reporters he did not use an illegal drug, insisting he used Claritin-D and a prescription drug he declined to identify.

NASCAR said there were numerous conversations between Mayfield and a medical review officer before he was suspended.

Black would not say what prescription drug Mayfield said he had used in conjunction with Claritin-D.

“He did bring up Claritin-D as a part of his explanation, and I was very clear that Claritin-D was not responsible for his positive test,” he said.