Johnson & Johnson's McNeil Consumer Healthcare issued another recall Friday, but this time it has nothing to do with manufacturing problems.

McNeil is voluntarily recalling more than half a million bottles of its infants' Tylenol after some customers complained the product's "SimpleMeasure" dosing system was too complicated.

The system comes with a plastic dosing syringe which parents can use to measure and administer the liquid Tylenol. Parents are supposed to push the syringe through a small hole in a cover at the top of the Tylenol bottle in order to extract a set amount of the fluid. The syringe can then be used to squirt the medicine into the baby's mouth.

The problem, according to McNeil, is that some customers were pushing too hard when inserting the syringe, thus causing the cover to break and fall into the bottle.

McNeil said they received only a "small number" of complaints, and that no adverse health problems had been reported as a result of the issue.

Still, the recall comes from the same unit that in 2010 and 2011 conducted a string of product recalls, most due to manufacturing issues at the company's Fort Washington, Penn. plant. Production at the plant was suspended in 2010.

Yesterday, Johnson & Johnson uploaded a video to YouTube (see below) explaining how the SimpleMeasure system works. If consumers break the cover on the bottle, the video encourages them to call the company for a refund.