The company said a chemical used in the packaging may be to blame.
If you have a bottle of the caplets, stop using it and contact Tylenol for a refund.
The makers of Tylenol have recalled arthritis pain caplets.
The product that is affected comes in 100-count bottles with red easy-open caps. Customers said the pills caused nausea and upset stomachs and had an unusual moldy odor.
The company said a chemical used in the packaging may be to blame.
If you have a bottle of the caplets, stop using it and contact Tylenol for a refund.