The Mucinex products are indicated to loosen phlegm (mucus) and thin bronchial secretions to clear the bronchial passageways of troublesome mucus and make coughs more productive.
Reportedly, in 2009, Reckitt Benckiser filed a suit against Watson for patent infringement related to the generic versions of Mucinex.
Watson Pharmaceuticals is continuing to seek final FDA approval of the products.