Johnson & Johnson’s (J&J) McNeil Consumer Healthcare has issued a recall of several of its major over-the-counter drugs in the Americas, Fiji and the United Arab Emirates following reports of a mildew-like odour and vomiting.

The product list, which includes top sellers Tylenol and Benadryl as well as Motrin, Rolaids, Simply Sleep and St Joseph‘s medications, is being recalled after reports of an unusual mouldy mildew-like odour and a small number of gastrointestinal cases, which included nausea, stomach pain, vomiting or diarrhoea.

Based on an investigation, McNeil Consumer Healthcare has determined that the smell is caused by the presence of trace amounts of a chemical called 2,4,6-tribromoanisole, caused by the breakdown of a chemical used in wooden packaging material.

The same issue caused McNeil Consumer Healthcare to recall lots of Tylenol in December 2009.

In addition to the product recall, McNeil Consumer Healthcare has announced it will cease shipment of products made using materials shipped on these wood pallets and require suppliers who ship materials to discontinue the use of these pallets.