Arbor Pharmaceuticals, LLC (Arbor) today announced a voluntary recall of three (3) lots of Cetylev (acetylcysteine) effervescent tablets for oral solution, 500 mg, due to an inadequate seal of the blister pack. An inadequate seal could result in an increase of oxygen and moisture entering the blister cavity which can start the effervescent process. This results in enlarged and swelled tablets which could also completely dissolve within the blister pack.