The makers of Tylenol are voluntarily recalling more than 20 of its children's and infants' liquid medications as a precaution against possible contamination.

The medication is being pulled from warehouses and stores because bacteria was found in one of the inactive ingredients, the company said.

The company did not say whether anyone has gotten sick from the medication.

Recalled products include: Children's Tylenol Plus Cough and Runny Nose 4 oz. Cherry, Children's Tylenol Plus Cold/Allergy 4 oz. Bubble Gum, Infant's Tylenol Drops 1 oz. Grape and Children's Tylenol Plus Flu 4 oz. Bubble Gum.

The recalled products only involve liquid medication and were manufactured between April 2008 and June 2008.

Consumers with questions may call 800-962-5357 between 8 a.m. and 8 p.m. Eastern time Mondays through Fridays.

The full list of recalled products and their lots numbers can be found here.