Albuquerque, NM - Attorney General Hector Balderas and 41 other attorneys general yesterday filed an amended antitrust lawsuit against the makers of Suboxone, a prescription drug used to treat opioid addiction, over allegations that the companies engaged in a scheme to block generic competitors and cause purchasers to pay artificially high prices. Reckitt Benckiser Pharmaceuticals, now known as Indivior, is accused of conspiring with MonoSol Rx to switch Suboxone from a tablet version to a film (that dissolves in the mouth) in order to prevent or delay generic alternatives and maintain monopoly profits.