Johnson & Johnson learned of potential problems with its Motrin formula in 2008, but instead of issuing a recall, hired an outside contractor which began buying up the products, according to congressional investigators.

Colleen Goggins, J&J’s president for McNeil consumer products, will testify before House lawmakers Thursday about ongoing quality problems with its over-the-counter medications.

Last month McNeil recalled more than 40 varieties of children’s medicines after Food and Drug Administration inspectors discovered a slew of violations at a company plant.

Some of the medicines recalled contained tiny particles of metal, though federal health regulators say the risk of health risks is remote.

The recall is the latest in a series that threaten to tarnish J&J brands like Tylenol and Benadryl.

Lawmakers will question Goggins about the latest problems as well as its handling of a 2009 recall.

Read More: -By Matthew Perrone, the Associated Press