The magazine reported a third drug came up positive during the urine-based test, citing two independent sources.

According to court documents filed in the past two weeks, Mayfield's attorneys sought a temporary restraining order against NASCAR on May 29, claiming his positive test resulted from taking the prescription drug Adderall XR, used to treat attention deficit hyperactivity disorder, and a double dosage of the allergy medication Claritin-D.

Mecklenburg County (NC) Superior Court Judge Forrest Bridges denied Mayfield's request. Bridges also issued a gag order, preventing both Mayfield and NASCAR to not disclose the results of the test.

Ryan McGee, who reported the story for ESPN, said on the television network's NASCAR Now program that no one violated the gag order.

NASCAR filed a countersuit June 5, accusing Mayfield of breaching his contract, deliberately violating the sanctioning body's substance-abuse policy and defrauding the organization and its competitors of more than $150,000 in winnings.

Mayfield, 39, became the first driver to be suspended indefinitely since NASCAR's revised drug policy went into effect earlier this year.

NASCAR revealed its new substance abuse policy last September, with all drivers and crew members tested at the beginning of this year and subject to random tests throughout the season.

The policy for testing someone who is of "reasonable suspicion" remained in effect.

NASCAR does not have an appeal process for its policy.