I reported Friday that Dodgers pitcher J.P. Howell had a theraputic use exemption under MLB’s drug policy to use an amphetamine to treat Attention Deficit Disorder in 2008.

“They monitor how you take it, how much is in your system,” Howell said. “The milligram amount, if it’s above or below what’s expected on your prescription, that’s considered a fail.”

Howell corrected himself today. He said that, in the scenario quoted above, a player wouldn’t be considered to have failed a drug test if he has the TUE. He merely loses his TUE.