Correction: The QOD from September 6, 2018 inadvertently did not have the reference listed. The question with the reference has been updated and is available on the website (https://www.clintox.org/aact-category/question-of-the-day)
Now, let's get to the QOD for September 10!
Question - What are the most common drugs associated with the diagnosis of “black hairy tongue”?
Answer - The cited article notes “The condition can be associated with multiple factors, including poor oral hygiene, the use of tobacco or irritating mouthwashes, and the receipt of antibiotic agents, particularly tetracyclines. (Harmad Y and Warren DK. Black Hairy Tongue. 2018 NEJM 379:e16)