The product is being recalled.
It comes in 100-count bottles with those Red E-Z open caps.
Customers reported an unusual moldy odor that caused nausea and upset stomachs.
It's believed to be from a chemical used in packaging.
If you have the product, you should stop using it and contact the company for a refund or replacement.
This latest recall expands a five-lot recall of the product announced last November.
For more on the Tylenol recall click HERE.