April 30, 2010 Mcneil Consumer Healthcare made an official press release announcing the recall of some of their famous OTC drug Tylenol®. To highlight their reason why the products are subject to voluntary recall, heres a part of the statement.
"Some of the products included in the recall may contain a higher concentration of active ingredient than is specified; others may contain inactive ingredients that may not meet internal testing requirements; and others may contain tiny particles."
To make it clear, only certain products are included in the list.
The list of the products with their corresponding LOT numbers can be found at Mcneil Product Recall.